Show a warning when using sync xhr.

This CL shows a message in developer tools console, warning that the sync xhr may
hamper responsiveness.
This was shown as per the spec suggestion: https://xhr.spec.whatwg.org/#sync-warning

BUG=392311

Review URL: https://codereview.chromium.org/585873002

git-svn-id: svn://svn.chromium.org/blink/trunk@184788 bbb929c8-8fbe-4397-9dbb-9b2b20218538

371 files changed, 408 insertions, 0 deletions

diff --git a/third_party/WebKit/LayoutTests/TestExpectations b/third_party/WebKit/LayoutTests/TestExpectations
index 0ba0483..e922651 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -1489,3 +1489,12 @@ crbug.com/429133 [ SnowLeopard ] virtual/textblob/fast/text/soft-hyphen-4.html [
 crbug.com/429133 [ SnowLeopard ] virtual/textblob/fast/text/splitText-dirty-lines.html [ Failure ]
 crbug.com/429133 [ SnowLeopard ] virtual/textblob/fast/text/text-combine-shrink-to-fit.html [ Failure ]
 
+# This batch is for the sync xhr console log patch.
+crbug.com/392311 [ Mac Win Release ] http/tests/appcache/fallback.html [ NeedsRebaseline ]
+crbug.com/392311 [ Mac Win Release ] http/tests/plugins/third-party-cookie-accept-policy.html [ NeedsRebaseline ]
+crbug.com/392311 [ Mac Win Release ] http/tests/xmlhttprequest/origin-exact-matching/22.html [ NeedsRebaseline ]
+crbug.com/392311 [ Mac Win Release ] http/tests/xmlhttprequest/origin-exact-matching/27.html [ NeedsRebaseline ]
+crbug.com/392311 [ Mac Win Release ] http/tests/xmlhttprequest/origin-exact-matching/28.html [ NeedsRebaseline ]
+crbug.com/392311 [ Mac Win Release ] http/tests/xmlhttprequest/origin-exact-matching/29.html [ NeedsRebaseline ]
+crbug.com/392311 [ Mac Win Release ] http/tests/xmlhttprequest/origin-exact-matching/30.html [ NeedsRebaseline ]
+crbug.com/392311 [ Mac Win Release ] http/tests/xmlhttprequest/origin-exact-matching/36.html [ NeedsRebaseline ]
diff --git a/third_party/WebKit/LayoutTests/css-parser/color3-expected.txt b/third_party/WebKit/LayoutTests/css-parser/color3-expected.txt
index bcf561e..9d8045b 100644
--- a/third_party/WebKit/LayoutTests/css-parser/color3-expected.txt
+++ b/third_party/WebKit/LayoutTests/css-parser/color3-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Color test for resources/css-parsing-tests/color3.json
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/css-parser/color3_hsl-expected.txt b/third_party/WebKit/LayoutTests/css-parser/color3_hsl-expected.txt
index 9d61a05..6d6c724 100644
--- a/third_party/WebKit/LayoutTests/css-parser/color3_hsl-expected.txt
+++ b/third_party/WebKit/LayoutTests/css-parser/color3_hsl-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Color test for resources/css-parsing-tests/color3_hsl.json
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/css-parser/color3_keywords-expected.txt b/third_party/WebKit/LayoutTests/css-parser/color3_keywords-expected.txt
index 0b4b867..0e49780 100644
--- a/third_party/WebKit/LayoutTests/css-parser/color3_keywords-expected.txt
+++ b/third_party/WebKit/LayoutTests/css-parser/color3_keywords-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Color test for resources/css-parsing-tests/color3_keywords.json
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes-expected.txt
index 659a7f2..d4dd140 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Attribute_Nodes: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes_xmlns-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes_xmlns-expected.txt
index b2780eb..c17a85e 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes_xmlns-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Attribute_Nodes_xmlns-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Attribute_Nodes_xmlns: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Comment_Nodes-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Comment_Nodes-expected.txt
index cc7daae..6a88637 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Comment_Nodes-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Comment_Nodes-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Comment_Nodes: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_Expressions-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_Expressions-expected.txt
index af3f197..78a9034 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_Expressions-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_Expressions-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Conformance_Expressions: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_ID-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_ID-expected.txt
index 8acac55..676de30 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_ID-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_ID-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Conformance_ID: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_3-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_3-expected.txt
index 4c857ad..3eebed8 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_3-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_3-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Conformance_hasFeature_3: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_empty-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_empty-expected.txt
index 56365b6..7ae41a1 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_empty-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_empty-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Conformance_hasFeature_empty: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_null-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_null-expected.txt
index c343150..4cb7f77 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_null-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Conformance_hasFeature_null-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Conformance_hasFeature_null: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Element_Nodes-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Element_Nodes-expected.txt
index a652f4f..73c0ee1 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Element_Nodes-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Element_Nodes-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Element_Nodes: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Processing_Instruction_Nodes-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Processing_Instruction_Nodes-expected.txt
index c511caa..1e01f45 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Processing_Instruction_Nodes-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Processing_Instruction_Nodes-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Processing_Instruction_Nodes: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Text_Nodes-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Text_Nodes-expected.txt
index f0a4a67..21bb5c4 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Text_Nodes-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/Text_Nodes-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Text_Nodes
 S1.2.4-Text-Nodes-Adjacent-Next: assertTrue failed
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluatorCast01-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluatorCast01-expected.txt
index e4c941b..4f7c5e7 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluatorCast01-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluatorCast01-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluatorCast01: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_INVALID_EXPRESSION_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_INVALID_EXPRESSION_ERR-expected.txt
index d843072..4ea8872 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_INVALID_EXPRESSION_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_INVALID_EXPRESSION_ERR-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createExpression_INVALID_EXPRESSION_ERR: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_01-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_01-expected.txt
index 57339b8..99b64ad 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_01-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_01-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createExpression_NAMESPACE_ERR_01: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_02-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_02-expected.txt
index 1dbc5b5..b0135ea 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_02-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NAMESPACE_ERR_02-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createExpression_NAMESPACE_ERR_02: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NS-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NS-expected.txt
index 436ab93..044ec4a 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NS-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_NS-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createExpression_NS: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_no_NS-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_no_NS-expected.txt
index 736edd2..f0b8564 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_no_NS-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createExpression_no_NS-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createExpression_no_NS: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_all-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_all-expected.txt
index dd5e462..5b46159 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_all-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_all-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createNSResolver_all: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_document-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_document-expected.txt
index 4a5ae17..c4096fb 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_document-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_document-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createNSResolver_document: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_documentElement-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_documentElement-expected.txt
index 69cdbc3..8329a0d 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_documentElement-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_createNSResolver_documentElement-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_createNSResolver_documentElement: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_INVALID_EXPRESSION_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_INVALID_EXPRESSION_ERR-expected.txt
index 7ed70c1..dda0980 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_INVALID_EXPRESSION_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_INVALID_EXPRESSION_ERR-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_evaluate_INVALID_EXPRESSION_ERR: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NAMESPACE_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NAMESPACE_ERR-expected.txt
index 5043c47..4a26d8e 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NAMESPACE_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NAMESPACE_ERR-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_evaluate_NAMESPACE_ERR: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NOT_SUPPORTED_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NOT_SUPPORTED_ERR-expected.txt
index a91d41c..39dbdda 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NOT_SUPPORTED_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_NOT_SUPPORTED_ERR-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_evaluate_NOT_SUPPORTED_ERR
 TypeError: undefined is not a function
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_TYPE_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_TYPE_ERR-expected.txt
index e379624..240e47b 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_TYPE_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_TYPE_ERR-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_evaluate_TYPE_ERR: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_WRONG_DOCUMENT_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_WRONG_DOCUMENT_ERR-expected.txt
index ce793f2..f4ab46f 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_WRONG_DOCUMENT_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_WRONG_DOCUMENT_ERR-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_evaluate_WRONG_DOCUMENT_ERR
 throw_WRONG_DOCUMENT_ERR: assertTrue failed
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_document-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_document-expected.txt
index 9b51ec3..e7ee986 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_document-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_document-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_evaluate_document: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_documentElement-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_documentElement-expected.txt
index 3bef72d..03a43f5 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_documentElement-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathEvaluator_evaluate_documentElement-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathEvaluator_evaluate_documentElement: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_NOT_SUPPORTED_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_NOT_SUPPORTED_ERR-expected.txt
index d89bf0a..55ec2a1 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_NOT_SUPPORTED_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_NOT_SUPPORTED_ERR-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathExpression_evaluate_NOT_SUPPORTED_ERR
 TypeError: undefined is not a function
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_WRONG_DOCUMENT_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_WRONG_DOCUMENT_ERR-expected.txt
index 371ce8b..010212a 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_WRONG_DOCUMENT_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_WRONG_DOCUMENT_ERR-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathExpression_evaluate_WRONG_DOCUMENT_ERR
 throw_WRONG_DOCUMENT_ERR: assertTrue failed
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_document-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_document-expected.txt
index df0a6ce..1646bc9 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_document-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_document-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathExpression_evaluate_document: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_documentElement-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_documentElement-expected.txt
index b4c0f94..5388b15 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_documentElement-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathExpression_evaluate_documentElement-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathExpression_evaluate_documentElement: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_nist_dmstc-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_nist_dmstc-expected.txt
index 619696b..ad043af 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_nist_dmstc-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_nist_dmstc-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathNSResolver_lookupNamespaceURI_nist_dmstc: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_null-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_null-expected.txt
index ef5ae46..abd9307 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_null-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_null-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathNSResolver_lookupNamespaceURI_null: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_prefix-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_prefix-expected.txt
index d896bd8..3b19d42 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_prefix-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_prefix-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathNSResolver_lookupNamespaceURI_prefix: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_xml-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_xml-expected.txt
index a5a80cf..cc676bd 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_xml-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathNSResolver_lookupNamespaceURI_xml-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathNSResolver_lookupNamespaceURI_xml: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_TYPE_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_TYPE_ERR-expected.txt
index a991a0d..5070e41 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_TYPE_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_TYPE_ERR-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_TYPE_ERR: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_false-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_false-expected.txt
index e5035b1..676336f 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_false-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_false-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_booleanValue_false: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_true-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_true-expected.txt
index 07dab84..5750582 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_true-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_booleanValue_true-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_booleanValue_true: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_TYPE-expected.txt
index 999a346..c1fa897 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_ANY_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_UNORDERED_NODE_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_UNORDERED_NODE_TYPE-expected.txt
index 55d0b8d..7f6aff5 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_UNORDERED_NODE_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ANY_UNORDERED_NODE_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_ANY_UNORDERED_NODE_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_BOOLEAN_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_BOOLEAN_TYPE-expected.txt
index 684cab8..65a65b9 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_BOOLEAN_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_BOOLEAN_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_BOOLEAN_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_FIRST_ORDERED_NODE_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_FIRST_ORDERED_NODE_TYPE-expected.txt
index 542cfcf..cfe5a1e 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_FIRST_ORDERED_NODE_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_FIRST_ORDERED_NODE_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_FIRST_ORDERED_NODE_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_NUMBER_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_NUMBER_TYPE-expected.txt
index 09cc1e8..1f2dc82 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_NUMBER_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_NUMBER_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_NUMBER_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_ITERATOR_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_ITERATOR_TYPE-expected.txt
index bbac09d..99d7f3c 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_ITERATOR_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_ITERATOR_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_ORDERED_NODE_ITERATOR_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt
index 1ae5231..8e24c39 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_ORDERED_NODE_SNAPSHOT_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_STRING_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_STRING_TYPE-expected.txt
index 8aa8670..ab5003a 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_STRING_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_STRING_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_STRING_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_ITERATOR_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_ITERATOR_TYPE-expected.txt
index 4fe31d0..31b9a90 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_ITERATOR_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_ITERATOR_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_UNORDERED_NODE_ITERATOR_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt
index 21c4457..39fe1f7 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_invalidIteratorState_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_invalidIteratorState_UNORDERED_NODE_SNAPSHOT_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iterateNext_INVALID_STATE_ERR-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iterateNext_INVALID_STATE_ERR-expected.txt
index 8acfd12..08d6cda 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iterateNext_INVALID_STATE_ERR-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iterateNext_INVALID_STATE_ERR-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_iterateNext_INVALID_STATE_ERR: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iteratorNext_ORDERED_NODE_ITERATOR_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iteratorNext_ORDERED_NODE_ITERATOR_TYPE-expected.txt
index 0ee91a5..ca7bacd 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iteratorNext_ORDERED_NODE_ITERATOR_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_iteratorNext_ORDERED_NODE_ITERATOR_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_iteratorNext_ORDERED_NODE_ITERATOR_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_numberValue-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_numberValue-expected.txt
index d592502..46b0e18 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_numberValue-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_numberValue-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_numberValue: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_resultType-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_resultType-expected.txt
index cb34f6d..14ba1d3 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_resultType-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_resultType-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_resultType: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_ANY_UNORDERED_NODE_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_ANY_UNORDERED_NODE_TYPE-expected.txt
index f6f953b..ebf4b71 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_ANY_UNORDERED_NODE_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_ANY_UNORDERED_NODE_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_singleNodeValue_ANY_UNORDERED_NODE_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_FIRST_ORDERED_NODE_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_FIRST_ORDERED_NODE_TYPE-expected.txt
index 7d9af22..5660e2b 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_FIRST_ORDERED_NODE_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_singleNodeValue_FIRST_ORDERED_NODE_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_singleNodeValue_FIRST_ORDERED_NODE_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt
index b5c4234..3e2bbfd 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_null: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_order-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_order-expected.txt
index 9b28322..19c6f229 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_order-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_order-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_snapshotItem_ORDERED_NODE_SNAPSHOT_TYPE_order: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_count-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_count-expected.txt
index b4ec27b..691c513 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_count-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_count-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_count: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt
index 1a9982a..1b77152 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_null-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_snapshotItem_UNORDERED_NODE_SNAPSHOT_TYPE_null: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt
index 6ef78d3..0db9b55 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_ORDERED_NODE_SNAPSHOT_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_snapshotLength_ORDERED_NODE_SNAPSHOT_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt
index c235c2b..34bd294 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_snapshotLength_UNORDERED_NODE_SNAPSHOT_TYPE-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_snapshotLength_UNORDERED_NODE_SNAPSHOT_TYPE: Success
diff --git a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_stringValue-expected.txt b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_stringValue-expected.txt
index caad681..1bb365b 100644
--- a/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_stringValue-expected.txt
+++ b/third_party/WebKit/LayoutTests/dom/svg/level3/xpath/XPathResult_stringValue-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XPathResult_stringValue: Success
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/bad-arguments-test-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/bad-arguments-test-expected.txt
index 0d107fd..ec1a8d6 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/bad-arguments-test-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/bad-arguments-test-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests calling WebGL APIs with wrong argument types
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-arrays-out-of-bounds-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-arrays-out-of-bounds-expected.txt
index dd23baf..7f3ed82 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-arrays-out-of-bounds-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-arrays-out-of-bounds-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test of drawArrays with out-of-bounds parameters
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-elements-out-of-bounds-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-elements-out-of-bounds-expected.txt
index c9a2f0c..dcb25c0 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-elements-out-of-bounds-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/draw-elements-out-of-bounds-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test of drawElements with out-of-bounds parameters
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/error-reporting-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/error-reporting-expected.txt
index a77ff40..7ba64e5 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/error-reporting-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/error-reporting-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests generation of synthetic and real GL errors
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/get-active-test-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/get-active-test-expected.txt
index b2841d8f..6ee5e4d 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/get-active-test-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/get-active-test-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test of getActiveAttrib and getActiveUniform
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/gl-object-get-calls-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/gl-object-get-calls-expected.txt
index 282e724..46022b0 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/gl-object-get-calls-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/gl-object-get-calls-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test of get calls against GL objects like getBufferParameter, etc.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/glsl-conformance-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/glsl-conformance-expected.txt
index 58b7bfb..f2fde96 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/glsl-conformance-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/glsl-conformance-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test ensures WebGL implementations allow proper GLES2 shaders compile and improper ones fail.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/incorrect-context-object-behaviour-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/incorrect-context-object-behaviour-expected.txt
index bc46373..c190608 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/incorrect-context-object-behaviour-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/incorrect-context-object-behaviour-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests calling WebGL APIs with objects from other contexts
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-copies-indices-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-copies-indices-expected.txt
index 3888302..b9ce9bb 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-copies-indices-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-copies-indices-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that client data is always copied during bufferData and bufferSubData calls, because otherwise the data the GL uses to draw may differ from that checked by the index validation code.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-expected.txt
index cb88789..36ae58d 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests that index validation verifies the correct number of indices
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-verifies-too-many-indices-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-verifies-too-many-indices-expected.txt
index 4d5c6e8..3ce3b14 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-verifies-too-many-indices-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/index-validation-verifies-too-many-indices-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests that index validation for drawElements does not examine too many indices
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-object-behaviour-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-object-behaviour-expected.txt
index bf63f8a..f82728f 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-object-behaviour-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-object-behaviour-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests calling WebGL APIs without providing the necessary objects
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-uniform-location-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-uniform-location-expected.txt
index 64a82b1..c842349 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-uniform-location-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/null-uniform-location-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests calling the various uniform[Matrix]* APIs with a null uniform location
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/object-deletion-behaviour-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/object-deletion-behaviour-expected.txt
index 5452d3f..18254f3 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/object-deletion-behaviour-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/object-deletion-behaviour-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests deletion behavior for texture, renderbuffer, shader, and program
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-element-index-uint-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-element-index-uint-expected.txt
index 24d68d4..b6d3bae 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-element-index-uint-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/oes-element-index-uint-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests that index validation for drawElements does not examine too many indices
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/tex-image-and-uniform-binding-bugs-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/tex-image-and-uniform-binding-bugs-expected.txt
index d1d92cd..c084327 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/tex-image-and-uniform-binding-bugs-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/tex-image-and-uniform-binding-bugs-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests passing a vec4 to a uniform and a canvas to texImage2D
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/type-conversion-test-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/type-conversion-test-expected.txt
index bc759269..ce1fc27 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/type-conversion-test-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/type-conversion-test-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests calling WebGL APIs with various types
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-array-length-overflow-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-array-length-overflow-expected.txt
index 236421a..8e7e685 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-array-length-overflow-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-array-length-overflow-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Verifies that the array conversion code for WebGLRenderingContext.uniform* does not crash.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-location-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-location-expected.txt
index 8006db3..94551b01 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-location-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/uniform-location-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests the WebGLUniformLocation API
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/webgl/webgl-specific-expected.txt b/third_party/WebKit/LayoutTests/fast/canvas/webgl/webgl-specific-expected.txt
index e5a2444..fb78e4e 100644
--- a/third_party/WebKit/LayoutTests/fast/canvas/webgl/webgl-specific-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/canvas/webgl/webgl-specific-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests the a few differences between WebGL and GLES2
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/dom/cross-frame-accessor-throw-expected.txt b/third_party/WebKit/LayoutTests/fast/dom/cross-frame-accessor-throw-expected.txt
new file mode 100644
index 0000000..82a7b32
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/fast/dom/cross-frame-accessor-throw-expected.txt
@@ -0,0 +1,8 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+
+This is a testharness.js-based test.
+PASS Check that exception is created in called function's context. 
+PASS Check that DOM exception is created in setter's context. 
+PASS Check that native exception is created in setter's context. 
+Harness: the test ran to completion.
+
diff --git a/third_party/WebKit/LayoutTests/fast/encoding/GBK/close-gbk-converter-expected.txt b/third_party/WebKit/LayoutTests/fast/encoding/GBK/close-gbk-converter-expected.txt
index 92bd02f..160891f 100644
--- a/third_party/WebKit/LayoutTests/fast/encoding/GBK/close-gbk-converter-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/encoding/GBK/close-gbk-converter-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests performs a sequence of actions that result in a GBK converter with substitution enabled being destroyed.
 
 PASS if there is no assertion failure.
diff --git a/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-expected.txt b/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-expected.txt
index 0fd59cc..153f8e6 100644
--- a/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests decoding characters in various character sets.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-truncated-expected.txt b/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-truncated-expected.txt
index d530248..3e1590d 100644
--- a/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-truncated-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/encoding/char-decoding-truncated-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test encoding behavior for truncated sequences
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/events/event-on-xhr-document-expected.txt b/third_party/WebKit/LayoutTests/fast/events/event-on-xhr-document-expected.txt
index e9b4da2..8f50d66 100644
--- a/third_party/WebKit/LayoutTests/fast/events/event-on-xhr-document-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/events/event-on-xhr-document-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS window.caughtFoo is ['foo@target', 'foo@root']
 PASS window.caughtFoo is []
 PASS window.caughtFoo is ['foo@target', 'foo@root']
diff --git a/third_party/WebKit/LayoutTests/fast/files/apply-blob-url-to-xhr-expected.txt b/third_party/WebKit/LayoutTests/fast/files/apply-blob-url-to-xhr-expected.txt
index b2a1034..28eb637 100644
--- a/third_party/WebKit/LayoutTests/fast/files/apply-blob-url-to-xhr-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/files/apply-blob-url-to-xhr-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 Test that XMLHttpRequest GET succeeds.
 Status: 200
diff --git a/third_party/WebKit/LayoutTests/fast/js/webcore-string-comparison-expected.txt b/third_party/WebKit/LayoutTests/fast/js/webcore-string-comparison-expected.txt
index 4ba7e8e..32bc17c 100644
--- a/third_party/WebKit/LayoutTests/fast/js/webcore-string-comparison-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/js/webcore-string-comparison-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 33057: typeof(xhr.responseText) != "string" on Windows.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/storage/serialized-script-value-expected.txt b/third_party/WebKit/LayoutTests/fast/storage/serialized-script-value-expected.txt
index 21f9261..59a8742 100644
--- a/third_party/WebKit/LayoutTests/fast/storage/serialized-script-value-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/storage/serialized-script-value-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 Deserialize to {"foo":"zoo","bar":{"baz":"myNewKey"}}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/set-dangerous-headers-local-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/set-dangerous-headers-local-expected.txt
index 0477ebb..8bc137f 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/set-dangerous-headers-local-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/set-dangerous-headers-local-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: Refused to set unsafe header "ACCEPT-CHARSET"
 CONSOLE ERROR: Refused to set unsafe header "ACCEPT-ENCODING"
 CONSOLE ERROR: Refused to set unsafe header "ACCESS-CONTROL-REQUEST-HEADERS"
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-bad-mimetype-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-bad-mimetype-expected.txt
index 6e5a883..88edd0b 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-bad-mimetype-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-bad-mimetype-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test checks for <rdar://problem/5303567> REGRESSION: XMLHttpRequest.responseXML returns NULL if response MIME type is not XML -- breaks Wikipedia widget
 
 PASS: No exception.
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-html-response-encoding-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-html-response-encoding-expected.txt
index a3cb8c0..6c1bc1f 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-html-response-encoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-html-response-encoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 14288: XMLHttpRequest doesn't use a correct content type for file:// URLs.
 
 HTML, charset determined by a META: Проверка
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt
index d790864..dd530a8 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test checks for rdar://problem/4962298 REGRESSION: Synchronous XHR for missing local file throws exception -- breaks Wikipedia widget
 
 PASS: No exception.
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-no-file-access-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-no-file-access-expected.txt
index 2a990f2..100f282 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-no-file-access-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-no-file-access-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load xmlhttprequest-no-file-access-expected.txt. Cross origin requests are only supported for protocol schemes: http, data, https.
 
 The child iframe cannot paste its textual results into this iframe because it is considered a different domain - that's the point of this test! Therefore, success is denoted by the child iframe calling notifyDone. The test will hang if something goes amiss with the access control checks.
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt
index 28c03dc..8d44543 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 Bug 22475: REGRESSION: Async XMLHttpRequest never finishes on nonexistent files anymore
 
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-recursive-sync-event-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-recursive-sync-event-expected.txt
index da103b7..093460b 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-recursive-sync-event-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-recursive-sync-event-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: line 20: Uncaught RangeError: Maximum call stack size exceeded.
 CONSOLE ERROR: line 21: Uncaught RangeError: Maximum call stack size exceeded.
 This tests that having infinite recursion in XMLHttpRequest event handler does not crash. 
diff --git a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-responsetype-sync-request-expected.txt b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-responsetype-sync-request-expected.txt
index 44406b0..e8c2e41 100644
--- a/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-responsetype-sync-request-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xmlhttprequest/xmlhttprequest-responsetype-sync-request-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests that the XMLHttpRequest responseType attribute is not modifiable for synchronous HTTP(S) requests.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/fast/xpath/4XPath/Borrowed/od_20000608-expected.txt b/third_party/WebKit/LayoutTests/fast/xpath/4XPath/Borrowed/od_20000608-expected.txt
index bf1f7f5..429007b 100644
--- a/third_party/WebKit/LayoutTests/fast/xpath/4XPath/Borrowed/od_20000608-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xpath/4XPath/Borrowed/od_20000608-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS nodeset.snapshotLength is 0
 PASS nodeset.snapshotLength is 12
 PASS successfullyParsed is true
diff --git a/third_party/WebKit/LayoutTests/fast/xsl/transform-xhr-doc-expected.txt b/third_party/WebKit/LayoutTests/fast/xsl/transform-xhr-doc-expected.txt
index c0a9ded..06d336d 100644
--- a/third_party/WebKit/LayoutTests/fast/xsl/transform-xhr-doc-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xsl/transform-xhr-doc-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 10313: xsl:import doesn't work in stylesheets loaded via XMLHttpRequest.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-expected.txt b/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-expected.txt
index 32bd47f..9e00793 100644
--- a/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 0.1 original xml:
 <?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="xslt-text.xsl"?><TEST>SOURCE XML: &lt;&lt;&lt;&amp;тест&amp;&gt;&gt;&gt;</TEST>
 0.2 xsl1:
diff --git a/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-template-expected.txt b/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-template-expected.txt
index aaf2fd9..e4f9585 100644
--- a/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-template-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/xsl/xslt-processor-template-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests that XSLT transforms can traverse into XHTML template element content when applying XSL template. If the test succeeds, the transform will have swapped the position of the body spans (A and B) with the template content spans (C and D) and replaced the spans with divs.
 
 Body divs: CD, Template content divs: AB
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/404-manifest-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/404-manifest-expected.txt
index 86bc36d..ba7ed69 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/404-manifest-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/404-manifest-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that subresources can be loaded if manifest is not available.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/access-via-redirect-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/access-via-redirect-expected.txt
index 8107c5f..fb91432 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/access-via-redirect-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/access-via-redirect-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests that the start of redirect chain doesn't get into an application cache if the end of the chain has a manifest.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/cyrillic-uri-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/cyrillic-uri-expected.txt
index 3c3e640..1c1e817 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/cyrillic-uri-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/cyrillic-uri-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that non-ASCII URIs work correctly in cache manifests.
 
 Should be a series of PASS messages, followed with DONE.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-2-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-2-expected.txt
index cd15247..05dce7c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-2-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-2-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 SUCCESS: No crash.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-expected.txt
index cd15247..8c4b90e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/fail-on-update-expected.txt
@@ -1 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 SUCCESS: No crash.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-hash-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-hash-expected.txt
index 50f4f71..d09dbaa 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-hash-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-hash-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that offline applications' main resources are not affected by URL hashes.
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-redirect-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-redirect-expected.txt
index 0a727f5..aa92722 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-redirect-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/main-resource-redirect-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that application cache is consulted again after a redirect response.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/manifest-parsing-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/manifest-parsing-expected.txt
index fc15310..c7a70d1 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/manifest-parsing-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/manifest-parsing-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test application cache manifest parsing.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/multi-fallback-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/multi-fallback-expected.txt
index 19a636c..d3ae501 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/multi-fallback-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/multi-fallback-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test application cache fallback entries with multiple candidates.
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/non-html-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/non-html-expected.txt
index 7c0e8c4..2195068 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/non-html-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/non-html-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that non-HTML main resources work with application cache correctly.
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/obsolete-error-events-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/obsolete-error-events-expected.txt
index a229cf6..e43235e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/obsolete-error-events-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/obsolete-error-events-expected.txt
@@ -1,3 +1,5 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that master list entries receive errors when manifest becomes obsolete.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/offline-access-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/offline-access-expected.txt
index 0fcc923..a3052dd 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/offline-access-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/offline-access-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that offline applications work when there is no network access (simulated).
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/online-fallback-layering-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/online-fallback-layering-expected.txt
index 00b913c..5355947 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/online-fallback-layering-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/online-fallback-layering-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a network namespace trumps a fallback namespace where they overlap.
 
 Sanity check the presence of the fallback namespace, should get the fallback resource.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/online-whitelist-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/online-whitelist-expected.txt
index a605108..5cae69e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/online-whitelist-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/online-whitelist-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test online whitelist functionality. Should say PASS:
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/reload-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/reload-expected.txt
index 7bfc07b..a899019 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/reload-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/reload-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that the manifest is picked correctly when reloading.
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/remove-cache-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/remove-cache-expected.txt
index 9e23ba1..45d1faa 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/remove-cache-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/remove-cache-expected.txt
@@ -1,3 +1,5 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a 404 response for manifest results in cache removal.
 
 Frame 1: Manifest is still available, so a new master resource is added to the cache.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/simple-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/simple-expected.txt
index 1c1a58c..c97bde1 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/simple-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/simple-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests that the application cache works by first loading a file that does not exist in the cache (to verify that a cache has been associated) and then loads a file that is in the cache
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-1-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-1-expected.txt
index c7f7e37..aac14fa 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-1-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-1-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a subframe without manifest doesn't pick an application cache from parent frame (as long as no relevant cache contains its resource).
 
 Techically, the check is that iframe subresources that are not in top frame cache are loaded anyway, so it can also pass if the UA fails to reject loads for cache misses.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-2-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-2-expected.txt
index 41a3fe0..a2e77bf 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-2-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-2-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a subframe without manifest gets picked by a relevant application cache that contains its resource.
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-3-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-3-expected.txt
index a1245cb..6180099 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-3-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-3-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a subframe with manifest that matches top frame manifest works correctly.
 
 In this case, the subframe resource is NOT listed in manifest explicitly.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-4-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-4-expected.txt
index e748160..e31555c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-4-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/top-frame-4-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a subframe with manifest that matches top frame manifest works correctly.
 
 In this case, the subframe resource is listed in manifest explicitly.
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/update-cache-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/update-cache-expected.txt
index a6d95d4..9b7ece4 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/update-cache-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/update-cache-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test a simple offline application self-update process. Should print a series of messages followed with DONE:
 
 Updating cache group...
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/whitelist-wildcard-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/whitelist-wildcard-expected.txt
index b503f12..2063e80 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/whitelist-wildcard-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/whitelist-wildcard-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that online whitelist wildcard flag is implemented.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/appcache/xhr-foreign-resource-expected.txt b/third_party/WebKit/LayoutTests/http/tests/appcache/xhr-foreign-resource-expected.txt
index bf67172..0adbffb 100644
--- a/third_party/WebKit/LayoutTests/http/tests/appcache/xhr-foreign-resource-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/appcache/xhr-foreign-resource-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a resource marked as foreign can still be loaded via XHR.
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/network-error-during-revalidation-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/network-error-during-revalidation-expected.txt
index 6a56051..cdf3dc6 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/network-error-during-revalidation-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/network-error-during-revalidation-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that failing revalidation with a network error does not cause a crash.
 
 Enabling network
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/post-redirect-get-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/post-redirect-get-expected.txt
index 69cfc5a..b378a53 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/post-redirect-get-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/post-redirect-get-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/post-with-cached-subresources-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/post-with-cached-subresources-expected.txt
index 69cfc5a..b378a53 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/post-with-cached-subresources-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/post-with-cached-subresources-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/stopped-revalidation-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/stopped-revalidation-expected.txt
index 69cfc5a..b378a53 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/stopped-revalidation-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/stopped-revalidation-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-1-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-1-expected.txt
index 13944ca..d021807 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-1-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-1-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 No cache headers or Last-modified header (result=Uncached expected=Uncached) PASS
 Expires: [now+10s]; (result=Cached expected=Cached) PASS
 Expires: [now-10s]; (result=Uncached expected=Uncached) PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-2-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-2-expected.txt
index 3900289..3dd67b6 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-2-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-expiration-2-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Cache-control: max-age=10, no-store; (result=Uncached expected=Uncached) PASS
 Cache-control: max-age=10, no-cache="Set-Cookie"; (result=Cached expected=Cached) PASS
 Cache-control: max-age=10, must-revalidate; (result=Cached expected=Cached) PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-failover-to-network-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-failover-to-network-expected.txt
index 7ef22e9..11c139f 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-failover-to-network-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-failover-to-network-expected.txt
@@ -1 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-fragment-identifier-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-fragment-identifier-expected.txt
index cd39098..4316d6a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cache/subresource-fragment-identifier-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cache/subresource-fragment-identifier-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
    Test that resources with fragment identifiers are loaded only once.
 Resource requests:
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/cookies/double-quoted-value-with-semi-colon-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cookies/double-quoted-value-with-semi-colon-expected.txt
index f2cd4f9..a3e2fb4 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cookies/double-quoted-value-with-semi-colon-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cookies/double-quoted-value-with-semi-colon-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for <rdar://problem/5666078> Cookie parsing terminates at the first semicolon, ignoring quotes (16699)
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/cookies/http-get-cookie-set-in-js-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cookies/http-get-cookie-set-in-js-expected.txt
index 5121213..32f7a9c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cookies/http-get-cookie-set-in-js-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cookies/http-get-cookie-set-in-js-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a cookie set using JavaScript can be correctly read by HTTP server
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/cookies/js-get-and-set-http-only-cookie-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cookies/js-get-and-set-http-only-cookie-expected.txt
index 9481174..89c8f40 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cookies/js-get-and-set-http-only-cookie-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cookies/js-get-and-set-http-only-cookie-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for <https://bugs.webkit.org/show_bug.cgi?id=86067> [BlackBerry] Possible to clobber httpOnly cookie.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/cookies/multiple-cookies-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cookies/multiple-cookies-expected.txt
index 35b58c1..7cba831 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cookies/multiple-cookies-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cookies/multiple-cookies-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test checks that mulitple cookies are correctly set.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-expired-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-expired-expected.txt
index d0a5c55..920404c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-expired-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-expired-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test checks that cookies are correctly set using Expires.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-max-age-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-max-age-expected.txt
index 859c392..a6d7377 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-max-age-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cookies/simple-cookies-max-age-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test checks that cookies are correctly set using Max-Age.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/cookies/single-quoted-value-expected.txt b/third_party/WebKit/LayoutTests/http/tests/cookies/single-quoted-value-expected.txt
index 687d307..4d00dcf 100644
--- a/third_party/WebKit/LayoutTests/http/tests/cookies/single-quoted-value-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/cookies/single-quoted-value-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for <https://bugs.webkit.org/show_bug.cgi?id=85775> [BlackBerry] Cookie parsing issue. If the cookie value provided was (") then the browser creates a session cookie instead.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/css/border-image-loading-expected.txt b/third_party/WebKit/LayoutTests/http/tests/css/border-image-loading-expected.txt
index 7aa8fbd..ace80fc 100644
--- a/third_party/WebKit/LayoutTests/http/tests/css/border-image-loading-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/css/border-image-loading-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Resource requests:
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/css/css-image-loading-expected.txt b/third_party/WebKit/LayoutTests/http/tests/css/css-image-loading-expected.txt
index c293b23..76f7abb 100644
--- a/third_party/WebKit/LayoutTests/http/tests/css/css-image-loading-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/css/css-image-loading-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 item
 Resource requests:
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/css/mask-image-loading-expected.txt b/third_party/WebKit/LayoutTests/http/tests/css/mask-image-loading-expected.txt
index 94fb6c0..7d2f433 100644
--- a/third_party/WebKit/LayoutTests/http/tests/css/mask-image-loading-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/css/mask-image-loading-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Resource requests:
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/css/reflection-mask-image-loading-expected.txt b/third_party/WebKit/LayoutTests/http/tests/css/reflection-mask-image-loading-expected.txt
index 94fb6c0..7d2f433 100644
--- a/third_party/WebKit/LayoutTests/http/tests/css/reflection-mask-image-loading-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/css/reflection-mask-image-loading-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Resource requests:
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt
index 61acc67..3e00e21 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/console-resource-errors-expected.txt
@@ -1,8 +1,10 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests that errors to load a resource cause error messages to be logged to console.
 
 
 console-resource-errors-iframe.html:3 GET http://127.0.0.1:8000/inspector/missing.css 404 (Not Found) console-message console-error-level
 console-resource-errors-iframe.html:4 GET http://127.0.0.1:8000/inspector/non-existent-script.js 404 (Not Found) console-message console-error-level
+console-resource-errors.html:17 Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/. console-message console-warning-level
 console-resource-errors.html:18 GET http://127.0.0.1:8000/inspector/non-existent-xhr 404 (Not Found)console-resource-errors.html:18 loadXHRconsole-resource-errors.html:10 performActionsVM:1 (anonymous function) InjectedScript._evaluateOn InjectedScript._evaluateAndWrap InjectedScript.evaluate console-message console-error-level
 non-existent-iframe.html:1 GET http://127.0.0.1:8000/inspector/non-existent-iframe.html 404 (Not Found) console-message console-error-level
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/console-xhr-logging-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/console-xhr-logging-expected.txt
index ac4a4b05..6e8f67e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/console-xhr-logging-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/console-xhr-logging-expected.txt
@@ -1,4 +1,5 @@
 CONSOLE MESSAGE: line 10: sending a %s request to %s
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 10: sending a %s request to %s
 CONSOLE MESSAGE: line 10: sending a %s request to %s
@@ -12,6 +13,7 @@ CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/inspector/resour
 Tests that XMLHttpRequest Logging works when Enabled and doesn't show logs when Disabled.
 
 console-xhr-logging.html:10 sending a GET request to resources/xhr-exists.html
+network-test.js:128 Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 network-test.js:129 Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 network-test.js:132 XHR finished loading: GET "http://127.0.0.1:8000/inspector/resources/xhr-exists.html".
 console-xhr-logging.html:10 sending a GET request to resources/xhr-does-not-exist.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/extensions-useragent-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/extensions-useragent-expected.txt
index 75928c4..286ecb4 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/extensions-useragent-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/extensions-useragent-expected.txt
@@ -1,3 +1,6 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests overriding user agent via WebInspector extension API
 
 Started extension.
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network-preflight-options-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network-preflight-options-expected.txt
index b876dcc..64f0f6e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network-preflight-options-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network-preflight-options-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/inspector/resources/cors-target.php?id=0&deny=yes. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/inspector/resources/cors-target.php?id=1&deny=yes. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/inspector/resources/cors-target.php?id=3&deny=yes. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/har-content-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network/har-content-expected.txt
index 8bc95fb..1163052 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/har-content-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network/har-content-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 1
 CONSOLE MESSAGE: line 6: XHR loaded: 2
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/load-resource-for-frontend-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network/load-resource-for-frontend-expected.txt
index 25932e0..5f81786 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/load-resource-for-frontend-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network/load-resource-for-frontend-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 1
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-content-replacement-xhr-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-content-replacement-xhr-expected.txt
index 87c64be3..abd5071 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-content-replacement-xhr-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-content-replacement-xhr-expected.txt
@@ -1,4 +1,5 @@
 CONSOLE MESSAGE: line 13: Done.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 1
 CONSOLE MESSAGE: line 6: XHR loaded: 2
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-cyrillic-xhr-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-cyrillic-xhr-expected.txt
index 9193c6c..c1858f1 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-cyrillic-xhr-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-cyrillic-xhr-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 1
 CONSOLE MESSAGE: line 6: XHR loaded: 2
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-empty-xhr-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-empty-xhr-expected.txt
index 7ffd4a0..796b7b9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-empty-xhr-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-empty-xhr-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 1
 CONSOLE MESSAGE: line 6: XHR loaded: 2
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-replay-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-replay-expected.txt
index cdecde5..3de0e32 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-replay-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-replay-expected.txt
@@ -1,4 +1,5 @@
 CONSOLE MESSAGE: line 6: XHR loaded: 1
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 2
 CONSOLE MESSAGE: line 6: XHR loaded: 3
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-sync-expected.txt
index 76fb770..910ba3d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/network/network-xhr-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 1
 Tests XHR network resource type and content for synchronous requests. Bug 61205
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/resource-har-conversion-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/resource-har-conversion-expected.txt
index e9a8315..b000e04 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/resource-har-conversion-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/resource-har-conversion-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests conversion of Inspector's resource representation into HAR format.
 
 Page reloaded.
diff --git a/third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resource-tree-no-xhrs-expected.txt b/third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resource-tree-no-xhrs-expected.txt
index e1a7e65..f4d8b17 100644
--- a/third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resource-tree-no-xhrs-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/inspector/resource-tree/resource-tree-no-xhrs-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 CONSOLE MESSAGE: line 6: XHR loaded: 1
 Tests that XHRs are not added to resourceTreeModel.
diff --git a/third_party/WebKit/LayoutTests/http/tests/loading/preload-img-test-expected.txt b/third_party/WebKit/LayoutTests/http/tests/loading/preload-img-test-expected.txt
index fcf58d9..daa8fbc 100644
--- a/third_party/WebKit/LayoutTests/http/tests/loading/preload-img-test-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/loading/preload-img-test-expected.txt
@@ -1,5 +1,6 @@
 main frame - didStartProvisionalLoadForFrame
 main frame - didCommitLoadForFrame
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 main frame - didFinishDocumentLoadForFrame
 main frame - didHandleOnloadEventsForFrame
 main frame - didFinishLoadForFrame
diff --git a/third_party/WebKit/LayoutTests/http/tests/loading/sync-xhr-priority-expected.txt b/third_party/WebKit/LayoutTests/http/tests/loading/sync-xhr-priority-expected.txt
index 6cf0ac5..72b0544 100644
--- a/third_party/WebKit/LayoutTests/http/tests/loading/sync-xhr-priority-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/loading/sync-xhr-priority-expected.txt
@@ -1,6 +1,7 @@
 main frame - didStartProvisionalLoadForFrame
 main frame - didCommitLoadForFrame
 http://127.0.0.1:8000/js-test-resources/js-test.js has priority Medium
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 http://127.0.0.1:8000/resources/test.mp4 has priority VeryHigh
 main frame - didFinishDocumentLoadForFrame
 main frame - didHandleOnloadEventsForFrame
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/blob/send-data-blob-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/blob/send-data-blob-expected.txt
index 0cb0785..86a2018 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/blob/send-data-blob-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/blob/send-data-blob-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for building blobs with multiple strings combined by BlobBuilder and sending them via XMLHttpRequest.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/blob/send-hybrid-blob-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/blob/send-hybrid-blob-expected.txt
index 15f816a..1ce0b37 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/blob/send-hybrid-blob-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/blob/send-hybrid-blob-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 Test for building blobs with multiple files combined by BlobBuilder and sending them via XMLHttpRequest. (This test requires eventSender.beginDragWithFiles)
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/blob/send-sliced-data-blob-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/blob/send-sliced-data-blob-expected.txt
index f274159..508012d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/blob/send-sliced-data-blob-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/blob/send-sliced-data-blob-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for slicing blobs created by BlobBuilder sending them via XMLHttpRequest.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-after-delete-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-after-delete-expected.txt
index 973ccdf..28b9253 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-after-delete-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-after-delete-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test File.lastModifiedDate returns null if the information is not available.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-expected.txt
index 1ff107a..f54af63 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/file-last-modified-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test File.lastModifiedDate.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-dragged-file-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-dragged-file-expected.txt
index 680b16d..680f46e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-dragged-file-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-dragged-file-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for sending a dragged file via XMLHttpRequest.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-sliced-dragged-file-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-sliced-dragged-file-expected.txt
index ba58378..a068ec3 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-sliced-dragged-file-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/fileapi/send-sliced-dragged-file-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for slicing a dragged file and sending it via XMLHttpRequest.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-constructed-from-form-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-constructed-from-form-expected.txt
index 1c49aa4..edebb68 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-constructed-from-form-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-constructed-from-form-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
       
 Test that FormData constructor takes a HTML Form element.
 Response: submitted=true&checkbox=value2&radio=value3&text=value4&file=test.txt:text/plain:Hello
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-expected.txt
index b138c25..7e553d5 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for sending FormData via XMLHttpRequest.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-bad-string-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-bad-string-expected.txt
index e962d0c..fabfc74 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-bad-string-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-bad-string-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that passing bad strings to FormData.append() throws and aborts properly.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-filename-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-filename-expected.txt
index 1d76f2b..d425e7a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-filename-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-filename-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that filename passed to FormData.append() takes precedence over filename in File.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-null-string-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-null-string-expected.txt
index 8cfa8c2a..32764ba 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-null-string-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-null-string-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for sending FormData via XMLHttpRequest.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-sliced-file-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-sliced-file-expected.txt
index e51921b..44883b9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-sliced-file-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-sliced-file-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for sending FormData with sliced files via XMLHttpRequest.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-string-containing-null-expected.txt b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-string-containing-null-expected.txt
index 5ce2fc5..0c6b1ac 100644
--- a/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-string-containing-null-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/local/formdata/send-form-data-with-string-containing-null-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that we can send textarea data containing null characters.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/misc/link-rel-prefetch-and-subresource-expected.txt b/third_party/WebKit/LayoutTests/http/tests/misc/link-rel-prefetch-and-subresource-expected.txt
index 52847882..4e9167e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/misc/link-rel-prefetch-and-subresource-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/misc/link-rel-prefetch-and-subresource-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Resource requests:
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/navigation/beacon-cookie-expected.txt b/third_party/WebKit/LayoutTests/http/tests/navigation/beacon-cookie-expected.txt
index 6ea63f8..d639401 100644
--- a/third_party/WebKit/LayoutTests/http/tests/navigation/beacon-cookie-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/navigation/beacon-cookie-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PingLoader dispatched to 'http://127.0.0.1:8000/navigation/resources/save-beacon.php?name=cookie'.
 Checking transmission of Beacons involving cookies.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/navigation/ping-cookie-expected.txt b/third_party/WebKit/LayoutTests/http/tests/navigation/ping-cookie-expected.txt
index 00d3c33..3290a7f 100644
--- a/third_party/WebKit/LayoutTests/http/tests/navigation/ping-cookie-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/navigation/ping-cookie-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PingLoader dispatched to 'http://127.0.0.1:8000/navigation/resources/save-Ping.php?test=cookie'.
 Ping sent successfully
 CONTENT_TYPE: text/ping
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-cross-origin-no-cookies-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-cross-origin-no-cookies-expected.txt
index 82e3b84..0e1f201 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-cross-origin-no-cookies-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-cross-origin-no-cookies-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: line 16: Refused to load the image 'http://127.0.0.1:8000/security/resources/abe.png' because it violates the following Content Security Policy directive: "img-src 'none'".
 
 PingLoader dispatched to 'http://localhost:8080/security/contentSecurityPolicy/resources/save-report.php?test=report-cross-origin-no-cookies.html'.
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-same-origin-with-cookies-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-same-origin-with-cookies-expected.txt
index e605402..a71b3bd 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-same-origin-with-cookies-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/report-same-origin-with-cookies-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: line 16: Refused to load the image 'http://127.0.0.1:8000/security/resources/abe.png' because it violates the following Content Security Policy directive: "img-src 'none'".
 
 PingLoader dispatched to 'http://127.0.0.1:8000/security/contentSecurityPolicy/resources/save-report.php?test=report-same-origin-with-cookies.html'.
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/cookies/xmlhttprequest-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/cookies/xmlhttprequest-expected.txt
index bb7d9786..311f792 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/cookies/xmlhttprequest-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/cookies/xmlhttprequest-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Running test.
 Sending XMLHttpRequest...
 Response received.
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/listener/xss-XMLHttpRequest-addEventListener-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/listener/xss-XMLHttpRequest-addEventListener-expected.txt
index 41e3804c..fb4d07e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/listener/xss-XMLHttpRequest-addEventListener-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/listener/xss-XMLHttpRequest-addEventListener-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests that frame used when setting eventListeners on an XMLHttpRequest using addEventListener, is the requests frame. (rdar://problem/5426142). This test passes if you don't see an alert dialog with the domain of "localhost" in it and an "Unsafe JavaScript" warning is logged to the console.
 
   
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-allowed-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-allowed-expected.txt
index a49047a..cc7df52 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-allowed-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-allowed-expected.txt
@@ -1,4 +1,5 @@
 ALERT: Executing script in the child window.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 ALERT: XHR POST opened.
 CONSOLE WARNING: Mixed Content: The page at 'https://127.0.0.1:8443/security/mixedContent/resources/frame-with-insecure-sync-xhr-post.html' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://localhost:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*&headers=Content-Type'. This content should also be served over HTTPS.
 ALERT: XHR POST sent.
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-blocked-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-blocked-expected.txt
index 8cbbda2..a77ec7b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-blocked-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/insecure-sync-post-xhr-blocked-expected.txt
@@ -1,4 +1,5 @@
 ALERT: Executing script in the child window.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 ALERT: XHR POST opened.
 CONSOLE ERROR: Mixed Content: The page at 'https://127.0.0.1:8443/security/mixedContent/resources/frame-with-insecure-sync-xhr-post.html' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://localhost:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*&headers=Content-Type'. This request has been blocked; the content must be served over HTTPS.
 ALERT: exception! NetworkError: Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://localhost:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*&headers=Content-Type'.
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-allowed-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-allowed-expected.txt
index a49047a..cc7df52 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-allowed-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-allowed-expected.txt
@@ -1,4 +1,5 @@
 ALERT: Executing script in the child window.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 ALERT: XHR POST opened.
 CONSOLE WARNING: Mixed Content: The page at 'https://127.0.0.1:8443/security/mixedContent/resources/frame-with-insecure-sync-xhr-post.html' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://localhost:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*&headers=Content-Type'. This content should also be served over HTTPS.
 ALERT: XHR POST sent.
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-blocked-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-blocked-expected.txt
index d5e6898..28b084c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-blocked-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/mixedContent/laxChecking/insecure-sync-post-xhr-blocked-expected.txt
@@ -1,4 +1,5 @@
 ALERT: Executing script in the child window.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 ALERT: XHR POST opened.
 CONSOLE WARNING: Mixed Content: The page at 'https://127.0.0.1:8443/security/mixedContent/resources/frame-with-insecure-sync-xhr-post.html' was loaded over HTTPS, but requested an insecure XMLHttpRequest endpoint 'http://localhost:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*&headers=Content-Type'. This content should also be served over HTTPS.
 ALERT: XHR POST sent.
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/no-referrer-expected.txt b/third_party/WebKit/LayoutTests/http/tests/security/no-referrer-expected.txt
index 6ab01dc..d7d6dea 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/no-referrer-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/security/no-referrer-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 JavaScript: PASS
 HTTP Referer: PASS
 External script (HTTP Referer): PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/serviceworker/sync-xhr-doesnt-deadlock-expected.txt b/third_party/WebKit/LayoutTests/http/tests/serviceworker/sync-xhr-doesnt-deadlock-expected.txt
new file mode 100644
index 0000000..d3d3de7
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/http/tests/serviceworker/sync-xhr-doesnt-deadlock-expected.txt
@@ -0,0 +1,6 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+
+This is a testharness.js-based test.
+PASS Verify SyncXHR does not deadlock 
+Harness: the test ran to completion.
+
diff --git a/third_party/WebKit/LayoutTests/http/tests/storage/callbacks-are-called-in-correct-context-expected.txt b/third_party/WebKit/LayoutTests/http/tests/storage/callbacks-are-called-in-correct-context-expected.txt
index 36e1582..f848735 100644
--- a/third_party/WebKit/LayoutTests/http/tests/storage/callbacks-are-called-in-correct-context-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/storage/callbacks-are-called-in-correct-context-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_redirects-expected.txt b/third_party/WebKit/LayoutTests/http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_redirects-expected.txt
index 86d44a3..936be12 100644
--- a/third_party/WebKit/LayoutTests/http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_redirects-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_redirects-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Description
 
 This test validates that redirects do not alter the URL.
diff --git a/third_party/WebKit/LayoutTests/http/tests/websocket/cookie-http-to-ws-expected.txt b/third_party/WebKit/LayoutTests/http/tests/websocket/cookie-http-to-ws-expected.txt
index 34cedb3..3dc5f67 100644
--- a/third_party/WebKit/LayoutTests/http/tests/websocket/cookie-http-to-ws-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/websocket/cookie-http-to-ws-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test How WebSocket handles cookies with cookie-av's.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/websocket/httponly-cookie-expected.txt b/third_party/WebKit/LayoutTests/http/tests/websocket/httponly-cookie-expected.txt
index 7b92ec3..0ead431 100644
--- a/third_party/WebKit/LayoutTests/http/tests/websocket/httponly-cookie-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/websocket/httponly-cookie-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test WebSocket sends HttpOnly cookies.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/workers/text-encoding-expected.txt b/third_party/WebKit/LayoutTests/http/tests/workers/text-encoding-expected.txt
index ccc92f25..45a92fe 100644
--- a/third_party/WebKit/LayoutTests/http/tests/workers/text-encoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/workers/text-encoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test verifies handling of text encoding in workers. The behavior matches FF3.1b2 with a single exclusion (see below).
 This is what's tested:
 - If http header 'Content-Type' with 'charset' specified is on response with worker script or XHR payload, that encoding is used.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/XMLHttpRequestException-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/XMLHttpRequestException-expected.txt
index 6939f84..d97ea32 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/XMLHttpRequestException-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/XMLHttpRequestException-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests the properties of XMLHttpRequest exceptions.
 
 PASS e.toString() is "NetworkError: Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://127.0.0.1:8000/xmlhttprequest/resources/infinite-loop.php'."
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/abort-should-destroy-responseText-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/abort-should-destroy-responseText-expected.txt
index 1eab7d7..4632d65 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/abort-should-destroy-responseText-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/abort-should-destroy-responseText-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests that calling XMLHttpRequest.abort() removes the responseText for the XMLHttpRequest.
 
 PASS: abort() cleared the response text.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-allow-lists-starting-with-comma-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-allow-lists-starting-with-comma-expected.txt
index 0ddb16d..b034ffa 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-allow-lists-starting-with-comma-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-allow-lists-starting-with-comma-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Allow lists starting with a comma should be parsed correctly.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-and-redirects-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-and-redirects-expected.txt
index 0d34a3d..0eac67f 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-and-redirects-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-and-redirects-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/resources/redirect.php?url=http://127.0.0.1:8000/xmlhttprequest/resources/access-control-basic-allow.cgi. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/resources/redirect.php?url=http://localhost:8000/xmlhttprequest/resources/access-control-basic-allow.cgi. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 Tests that redirects between origins are never allowed, even when access control is involved.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-data-url-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-data-url-expected.txt
index 09c0942..c3c223f 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-data-url-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-data-url-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 HTTP_ORIGIN: null
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-expected.txt
index 85f9a5c..90bf49d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-access-control-origin-header-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 HTTP_ORIGIN: http://127.0.0.1:8000
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-expected.txt
index 6712719..fac64e8 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-star-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-star-expected.txt
index 6712719..fac64e8 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-star-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-allow-star-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-denied-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-denied-expected.txt
index aac933b..7bf0b04 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-denied-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-denied-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-basic-denied.cgi. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 PASS: Exception thrown. Cross-domain access was denied in 'send'. [Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://localhost:8000/xmlhttprequest/resources/access-control-basic-denied.cgi'.].
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-get-fail-non-simple-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-get-fail-non-simple-expected.txt
index cacb259..7654010 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-get-fail-non-simple-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-get-fail-non-simple-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-basic-get-fail-non-simple.cgi. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access. The response had HTTP status code 403.
 PASS: Exception thrown. Cross-domain access was denied in 'send'. [Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://localhost:8000/xmlhttprequest/resources/access-control-basic-get-fail-non-simple.cgi'.].
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-allow-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-allow-expected.txt
index bc28721..5e7ab28 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-allow-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-allow-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 PASS: PUT data received
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-deny-cached-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-deny-cached-expected.txt
index 8d169d4..62d50a7 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-deny-cached-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-non-simple-deny-cached-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-basic-non-get-allow.cgi. Request header field Content-Type is not allowed by Access-Control-Allow-Headers.
 PASS: Exception thrown. Cross-domain access is not allowed in 'send'. [Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://localhost:8000/xmlhttprequest/resources/access-control-basic-non-get-allow.cgi'.].
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-post-fail-non-simple-content-type-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-post-fail-non-simple-content-type-expected.txt
index c6f726c..ae21c2e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-post-fail-non-simple-content-type-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-post-fail-non-simple-content-type-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-basic-options-not-supported.cgi. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 PASS: Exception thrown. Cross-domain access was denied in 'send'. [Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://localhost:8000/xmlhttprequest/resources/access-control-basic-options-not-supported.cgi'.].
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-request-headers-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-request-headers-expected.txt
index 2f7e2bd..f706f99 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-request-headers-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-request-headers-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Accept: *
 Accept-Language: ru
 Content-Language: ru
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-response-headers-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-response-headers-expected.txt
index 1ea5fa4..a232810 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-response-headers-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-basic-whitelist-response-headers-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: Refused to get unsafe header "x-webkit"
 PASS: Response header cache-control allowed.
 PASS: Response header content-language allowed.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-header-denied-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-header-denied-expected.txt
index fb2d2fe..6c27417 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-header-denied-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-header-denied-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-preflight-denied-xsrf.php?state=header. Request header field X-NON-STANDARD is not allowed by Access-Control-Allow-Headers.
 PASS: Request successfully blocked.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-method-denied-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-method-denied-expected.txt
index cee724a..f407a83 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-method-denied-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-method-denied-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-preflight-denied-xsrf.php?state=method. Method DELETE is not allowed by Access-Control-Allow-Methods.
 PASS: Request successfully blocked.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-not-supported-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-not-supported-expected.txt
index 78fc7d9..7242fe6 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-not-supported-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-async-not-supported-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-preflight-denied-xsrf.php. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 PASS: Request successfully blocked.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-credential-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-credential-sync-expected.txt
index d800bba..357db8a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-credential-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-credential-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 Test case for bug 37781: [XHR] Cross-Origin synchronous request with credential raises NETWORK_ERR
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-async-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-async-expected.txt
index 4188b7f..b21f0ca 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-async-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-async-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that custom headers are not sent with OPTIONS preflight request.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-sync-expected.txt
index 4188b7f..b21f0ca 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-headers-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that custom headers are not sent with OPTIONS preflight request.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-request-must-not-contain-cookie-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-request-must-not-contain-cookie-expected.txt
index 86830ac..4fbe248 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-request-must-not-contain-cookie-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-request-must-not-contain-cookie-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 ALERT: http://localhost:8000/cookies/resources/cookie-utility.php?queryfunction=setFooCookie
 ALERT: XHR response - Set the foo cookie
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-header-denied-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-header-denied-expected.txt
index fb2d2fe..6c27417 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-header-denied-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-header-denied-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-preflight-denied-xsrf.php?state=header. Request header field X-NON-STANDARD is not allowed by Access-Control-Allow-Headers.
 PASS: Request successfully blocked.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-method-denied-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-method-denied-expected.txt
index cee724a..f407a83 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-method-denied-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-method-denied-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-preflight-denied-xsrf.php?state=method. Method DELETE is not allowed by Access-Control-Allow-Methods.
 PASS: Request successfully blocked.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-not-supported-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-not-supported-expected.txt
index 78fc7d9..7242fe6 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-not-supported-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-preflight-sync-not-supported-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-preflight-denied-xsrf.php. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 PASS: Request successfully blocked.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-response-with-body-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-response-with-body-sync-expected.txt
index ac40e8d..b341fc9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-response-with-body-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-response-with-body-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 36854: Body from cross origin preflight response is prepended to the actual response body.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-expected.txt
index 420cb74..bb244c6 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test verifies that sandboxed iframe has XmlHttpRequest access to the server that accepts all domains. It will print "PASS" on success.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-origin-null-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-origin-null-expected.txt
index 420cb74..bb244c6 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-origin-null-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-allow-origin-null-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test verifies that sandboxed iframe has XmlHttpRequest access to the server that accepts all domains. It will print "PASS" on success.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-expected.txt
index 106c0fb..5a20c4b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-sandboxed-iframe-denied.cgi. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access.
 This test verifies that sandboxed iframe does not have XmlHttpRequest access to its server. It will print "PASS" on success.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-without-wildcard-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-without-wildcard-expected.txt
index b96c8be..7e8fcef 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-without-wildcard-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/access-control-sandboxed-iframe-denied-without-wildcard-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-sandboxed-iframe-denied-without-wildcard.cgi. The 'Access-Control-Allow-Origin' header has a value 'http://127.0.0.1:8000' that is not equal to the supplied origin. Origin 'null' is therefore not allowed access.
 This test verifies that sandboxed iframe does not have XmlHttpRequest access to its server with "Access-Control-Allow-Origin" set to its own origin (127.0.0.1).
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/authorization-header-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/authorization-header-expected.txt
index c70fb9e..ad0eed7 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/authorization-header-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/authorization-header-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that Authorization header can be set via setRequestHeader.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/binary-x-user-defined-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/binary-x-user-defined-expected.txt
index a34734d..4e64a29 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/binary-x-user-defined-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/binary-x-user-defined-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 15555: XMLHttpRequest does not support charset "x-user-defined", which can facilitate loading of binary data.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/blob-response-type-warm-cache-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/blob-response-type-warm-cache-expected.txt
index f7f0fa5..b724a9c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/blob-response-type-warm-cache-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/blob-response-type-warm-cache-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
 PASS
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/broken-xml-encoding-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/broken-xml-encoding-expected.txt
index f6a66e3..ba954f9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/broken-xml-encoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/broken-xml-encoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 rdar://problem/6621701 Test that XML resources with incorrect encoding retrieved via XMLHttpRequest are fully decoded, cf. bug 17079.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cache-override-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cache-override-expected.txt
index e7f4ed5..6dc8515 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cache-override-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cache-override-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests for bug 8210 - Conditional XMLHttpRequest gets should pass 304 responses unchanged.
 
 Fetching the resource once to cache the response...
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/connection-error-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/connection-error-sync-expected.txt
index e60184e..82ded26 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/connection-error-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/connection-error-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test the behavior of a sync XMLHttpRequest that encounters an infinite redirection loop.
 
 Exception NetworkError; code=19; number=undefined (0); message='Failed to execute 'send' on 'XMLHttpRequest': Failed to load 'http://127.0.0.1:8000/xmlhttprequest/resources/infinite-loop.php'.'
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cookies-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cookies-expected.txt
index 9639c7b..b36ed1a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cookies-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cookies-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests for bug 3420: XMLHttpRequest does not handle set-cookie headers.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-cookie-storage-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-cookie-storage-expected.txt
index ba854cc..380c699 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-cookie-storage-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-origin-cookie-storage-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE WARNING: Setting 'XMLHttpRequest.withCredentials' for synchronous requests is deprecated.
 Start
 Cross-origin XMLHttpRequest (sync), testing that cookies are not set when not sending credentials.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-2-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-2-expected.txt
index e8ffe1f..bf6f8c1 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-2-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-2-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/reply.xml. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 PASS
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-expected.txt
index e8ffe1f..bf6f8c1 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/cross-site-denied-response-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/reply.xml. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 PASS
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/document-domain-set-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/document-domain-set-expected.txt
index 12fa164..efe5172 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/document-domain-set-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/document-domain-set-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Waiting...
 PASS: XMLHttpRequest allowed with document.domain set.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/duplicate-revalidation-reload-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/duplicate-revalidation-reload-expected.txt
index 7513084..d4e3763 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/duplicate-revalidation-reload-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/duplicate-revalidation-reload-expected.txt
@@ -1,3 +1,5 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Make two XHRs for the resource which is already cached.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-2-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-2-expected.txt
index 43c9695e..3e02aec 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-2-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-2-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test how URLs are encoded.
 
 abs-path: PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-expected.txt
index ecdba2d..c15be2c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encode-request-url-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test how URLs are encoded.
 
 abs-path: PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encoding-send-latin-1-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encoding-send-latin-1-expected.txt
index 303a0ed..1dc3113 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encoding-send-latin-1-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/encoding-send-latin-1-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that Latin-1 characters are ent to the server correctly.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/event-target-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/event-target-expected.txt
index 7e6a0d7..e67594e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/event-target-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/event-target-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests for bug 11053 - XMLHttpRequest should be an EventTarget.
 
 fooListener: this = [object XMLHttpRequest]
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/exceptions-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/exceptions-expected.txt
index 17e370d..9d07a2e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/exceptions-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/exceptions-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that XMLHttpRequest raises exceptions when it should.
 
 new XMLHttpRequest()
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/extra-parameters-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/extra-parameters-expected.txt
index b7cf686..b5095e8 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/extra-parameters-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/extra-parameters-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that XMLHttpRequest tolerates extra parameters to its methods.
 
   Status: 200
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/failed-auth-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/failed-auth-expected.txt
index cc27c84..78f10ea 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/failed-auth-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/failed-auth-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 13075: XMLHttpRequest with failed authentication should set status to 401.
 
 Sync, no credentials: OK
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/get-dangerous-headers-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/get-dangerous-headers-expected.txt
index a79d2fb..c32abc3 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/get-dangerous-headers-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/get-dangerous-headers-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: Refused to get unsafe header "Set-Cookie"
 CONSOLE ERROR: Refused to get unsafe header "set-cookie"
 CONSOLE ERROR: Refused to get unsafe header "Set-Cookie2"
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/inject-header-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/inject-header-expected.txt
index 29ce96c..aebb02b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/inject-header-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/inject-header-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that setRequestHeader properly checks for line feeds in header values.
 
 %0AEvil%3A%20on -> SUCCESS, setRequestHeader() raised an exception SyntaxError: Failed to execute 'setRequestHeader' on 'XMLHttpRequest': ' Evil: on' is not a valid HTTP header field value.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/logout-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/logout-expected.txt
index ad26069..0a14fb1 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/logout-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/logout-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 rdar://problem/6447115 Test that a method for logging out of a site that is used by SAP works.
 
 If an authentication dialog appears, please cancel it.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-expected.txt
index 6ce75ff..efbc91b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests for bug 3812 - GET and POST should not be the only HTTP methods implemented in XMLHttpRequest.
 
 GET(""): GET(null bytes), Content-Type: null
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-lower-case-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-lower-case-expected.txt
index 3ed7e3a..8834833 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-lower-case-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/methods-lower-case-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests for bug 8099 - XMLHttpRequest lowercase post requests broken.
 
 get(""): GET(null bytes), Content-Type: null
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/newline-in-request-uri-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/newline-in-request-uri-expected.txt
index 6cc0d70..47b4d38 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/newline-in-request-uri-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/newline-in-request-uri-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 22731: Newline in XMLHttpRequest URL can be used to remove HTTP headers (e.g. Host:).
 
 LF SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/null-auth-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/null-auth-expected.txt
index 5a62485..1131a48 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/null-auth-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/null-auth-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that null values in XHR login/password parameters are treated correctly.
 
 No auth tokens should be sent with this request.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/onloadend-event-after-sync-requests-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/onloadend-event-after-sync-requests-expected.txt
index a282199..4666676 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/onloadend-event-after-sync-requests-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/onloadend-event-after-sync-requests-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test case for bug 40952: Onloadend event is not supported in XMLHttpRequest
 
 Verify that a loadend ProgressEvent is dispatched after a load ProgressEvent when a synchronous request completes normally.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/open-async-overload-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/open-async-overload-expected.txt
index bbe8534..4de17ef 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/open-async-overload-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/open-async-overload-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XMLHttpRequest.open() should be correctly overloaded
 
 PASS: if async argument is true, send() should behave asynchronously
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/00-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/00-expected.txt
index 2fe2def..604862a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/00-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/00-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/01-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/01-expected.txt
index f31b435..4b4d826 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/01-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/01-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/02-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/02-expected.txt
index c635262..54947e2 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/02-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/02-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/03-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/03-expected.txt
index 99f80b4c..9a67673 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/03-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/03-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/04-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/04-expected.txt
index 42478f0..175da54 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/04-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/04-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/05-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/05-expected.txt
index 0e3480d..4a0ad13 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/05-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/05-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/06-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/06-expected.txt
index 0867c4c..ab4b283 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/06-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/06-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 
 
 --------
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/07-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/07-expected.txt
index 73f1094..4352e75 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/07-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/07-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Fwww2.localhost%3A8000. The 'Access-Control-Allow-Origin' header has a value 'http://www2.localhost:8000' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/08-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/08-expected.txt
index b5b4bb7..8628729 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/08-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/08-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains the invalid value '//localhost:8000'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/09-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/09-expected.txt
index 6db87ea..4ae4b87 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/09-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/09-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains the invalid value '://localhost:8000'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/10-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/10-expected.txt
index 9abe4e3..1be5ea2 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/10-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/10-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=ftp%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header has a value 'ftp://localhost:8000' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/11-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/11-expected.txt
index 03ac9db..87913e7 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/11-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/11-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains the invalid value 'http:://localhost:8000'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/12-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/12-expected.txt
index 5108da5..f86dded 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/12-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/12-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header has a value 'http:/localhost:8000' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/13-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/13-expected.txt
index 674ab6f..13d147d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/13-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/13-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3Alocalhost%3A8000. The 'Access-Control-Allow-Origin' header has a value 'http:localhost:8000' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/14-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/14-expected.txt
index e19be43..fe6684b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/14-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/14-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=localhost%3A8000. The 'Access-Control-Allow-Origin' header has a value 'localhost:8000' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/15-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/15-expected.txt
index e038143..0d3a37b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/15-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/15-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%3F. The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8000?' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/16-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/16-expected.txt
index 83ff2e4..a72dfee 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/16-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/16-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%2F. The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8000/' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/17-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/17-expected.txt
index 3c5dd00..5649e61 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/17-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/17-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%20%2F. The 'Access-Control-Allow-Origin' header contains multiple values 'http://localhost:8000 /', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/18-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/18-expected.txt
index 12b7dc3..a161091 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/18-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/18-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%23. The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8000#' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/19-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/19-expected.txt
index 787842c..52681ab 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/19-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/19-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%2523. The 'Access-Control-Allow-Origin' header contains the invalid value 'http://localhost:8000%23'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/20-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/20-expected.txt
index 7032393..e650b3a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/20-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/20-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%3A80. The 'Access-Control-Allow-Origin' header contains the invalid value 'http://localhost:8000:80'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/21-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/21-expected.txt
index 15bcb20..01de027 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/21-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/21-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%2C%20*. The 'Access-Control-Allow-Origin' header contains multiple values 'http://localhost:8000, *', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/23-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/23-expected.txt
index 69f755b..00347d2 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/23-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/23-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=HTTP%3A%2F%2FLOCALHOST%3A8000. The 'Access-Control-Allow-Origin' header has a value 'HTTP://LOCALHOST:8000' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/24-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/24-expected.txt
index 5dcb978..55ba210 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/24-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/24-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=HTTP%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header has a value 'HTTP://localhost:8000' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/25-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/25-expected.txt
index cfd1c3c..cab7ece 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/25-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/25-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=-. The 'Access-Control-Allow-Origin' header contains the invalid value '-'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/26-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/26-expected.txt
index be1a17f..c7aaaef 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/26-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/26-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=**. The 'Access-Control-Allow-Origin' header contains the invalid value '**'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/31-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/31-expected.txt
index 2cd15bc..42e3bb0 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/31-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/31-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*%20*. The 'Access-Control-Allow-Origin' header contains multiple values '* *', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/32-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/32-expected.txt
index 2e2c0c8..8b21372 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/32-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/32-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*http%3A%2F%2F*. The 'Access-Control-Allow-Origin' header contains the invalid value '*http://*'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/33-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/33-expected.txt
index 4bf7cb1..2c1e743 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/33-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/33-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains the invalid value '*http://localhost:8000'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/34-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/34-expected.txt
index 808ead5..558fb9d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/34-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/34-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*%20http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains multiple values '* http://localhost:8000', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/35-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/35-expected.txt
index 9204651..598be3e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/35-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/35-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*%2C%20http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains multiple values '*, http://localhost:8000', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/37-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/37-expected.txt
index 1db36f7..c7e1004 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/37-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/37-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=null%20http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains multiple values 'null http://localhost:8000', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/38-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/38-expected.txt
index 3a1db45..1396b62 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/38-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/38-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Fexample.net. The 'Access-Control-Allow-Origin' header has a value 'http://example.net' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/39-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/39-expected.txt
index 7372d62..c433084 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/39-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/39-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Fexample.net%20http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains multiple values 'http://example.net http://localhost:8000', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/40-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/40-expected.txt
index 9808094..610d811 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/40-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/40-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Fexample.net%2C%20http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains multiple values 'http://example.net, http://localhost:8000', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/41-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/41-expected.txt
index a99863e..0b60ada 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/41-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/41-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origins=http%3A%2F%2Fexample.net,http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains multiple values 'http://example.net, http://localhost:8000', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/42-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/42-expected.txt
index 3fa618b..aedccc8 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/42-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/42-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origins=http%3A%2F%2Flocalhost%3A8000,http%3A%2F%2Flocalhost%3A8000. The 'Access-Control-Allow-Origin' header contains multiple values 'http://localhost:8000, http://localhost:8000', but only one is allowed. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/43-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/43-expected.txt
index 2740c62..fdbe6c9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/43-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/43-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=null. The 'Access-Control-Allow-Origin' header contains the invalid value 'null'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/44-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/44-expected.txt
index 829b6e4..9219725 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/44-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/44-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=. The 'Access-Control-Allow-Origin' header contains the invalid value ''. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/45-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/45-expected.txt
index be45b3e..a0dc918 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/45-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/45-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%2Fxmlhttprequest%2Fresources%2Forigin-exact-matching-iframe.html%3F45. The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8000/xmlhttprequest/resources/origin-exact-matching-iframe.html?45' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/46-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/46-expected.txt
index 64fe8ff..07cbe7c 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/46-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/46-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%2Fxmlhttprequest%2Fresources%2F. The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8000/xmlhttprequest/resources/' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/47-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/47-expected.txt
index eb4ab76..2a7f828 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/47-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-exact-matching/47-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%2Fxmlhttprequest%2Fresources%2Forigin-exact-matching-iframe.html%3F47. The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8000/xmlhttprequest/resources/origin-exact-matching-iframe.html?47' that is not equal to the supplied origin. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-get-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-get-sync-expected.txt
index 85f9a5c..90bf49d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-get-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-get-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 HTTP_ORIGIN: http://127.0.0.1:8000
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-post-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-post-sync-expected.txt
index 85f9a5c..90bf49d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-post-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-cross-origin-post-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 HTTP_ORIGIN: http://127.0.0.1:8000
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-get-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-get-sync-expected.txt
index 52db1b3..a94914e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-get-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-get-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 HTTP_ORIGIN: 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-post-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-post-sync-expected.txt
index 85f9a5c..90bf49d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-post-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-header-same-origin-post-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS: Cross-domain access allowed.
 HTTP_ORIGIN: http://127.0.0.1:8000
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-all-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-all-expected.txt
index 12ba42f..3e25a79 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-all-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-all-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests the special case of whitelisting all origins.
 
 Testing: http://localhost:8000/xmlhttprequest/resources/get.txt (sync)
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-exact-match-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-exact-match-expected.txt
index b9916a3..8492b56 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-exact-match-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-exact-match-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests the behavior of whitelisting origins using exact matching.
 
 Testing: http://localhost:8000/xmlhttprequest/resources/get.txt (sync)
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-https-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-https-expected.txt
index 5776b28..724aea9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-https-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-https-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/get.txt?sync. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/get.txt?async. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 Tests that origin whitelisting for https does not match http URLs.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-expected.txt
index 0099474..8e44bcb 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests origin whitelisting with IP addresses.
 
 Testing: http://127.0.0.1:8000/xmlhttprequest/resources/get.txt (sync)
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-with-subdomains-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-with-subdomains-expected.txt
index 0ee2088..0433d8e 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-with-subdomains-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-ip-addresses-with-subdomains-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/get.txt. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/get.txt. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed access.
 Specifying that an IP address should match subdomains doesn't make sense. This test verifies that it doesn't do anything.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-removal-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-removal-expected.txt
index e554df4..762921a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-removal-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-removal-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/get.txt. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/get.txt. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/get.txt. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-subdomains-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-subdomains-expected.txt
index 3e62e4e..e794dcb 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-subdomains-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/origin-whitelisting-subdomains-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests origin whitelisting subdomain behavior.
 
 Testing: http://localhost:8000/xmlhttprequest/resources/get.txt (sync)
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-blob-content-type-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-blob-content-type-sync-expected.txt
index b62ef9c..b22b63a 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-blob-content-type-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-blob-content-type-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/access-control-allow-lists.php. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 Test verifies that content MIME type is set correctly when Blob is sent using XMLHttpRequest synchronously.
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-content-type-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-content-type-expected.txt
index 177c6ad..5ca2b54 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-content-type-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-content-type-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 172802 - Wrong default Content-Type set in XMLHttpRequest.send(DOMString)
 
 Should be text/plain;charset=UTF-8:
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-with-boundary-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-with-boundary-expected.txt
index 44d96b9..8d6b7cd 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-with-boundary-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/post-with-boundary-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 40947: REGRESSION (r57544): XMLHttpRequest POSTed multipart/form-data wrongfully gets a charset appended.
 
 There should be no charset added, and most importantly, it shouldn't be appended to the end.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-post-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-post-sync-expected.txt
index 14ecdda..5b885bb 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-post-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-post-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a cross-origin redirect to a server that responds is indistinguishable from one that does not. Should say PASS:
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-double-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-double-expected.txt
index ffdbeac..2b9a823 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-double-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-double-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a cross-origin chain of redirects to a server that responds is indistinguishable from one that does not. Should say PASS:
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-expected.txt
index 14ecdda..5b885bb 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that a cross-origin redirect to a server that responds is indistinguishable from one that does not. Should say PASS:
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-tripmine-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-tripmine-expected.txt
index f9e1cd6..23fa351 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-tripmine-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/redirect-cross-origin-tripmine-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/resources/tripmine.php. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/resources/tripmine.php. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/resources/tripmine.php. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/referer-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/referer-expected.txt
index 2d8cc9c..3debcd8 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/referer-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/referer-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 11611: REGRESSION: No http referer header sent on XMLHttpRequest.
 
 sync: OK
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/remember-bad-password-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/remember-bad-password-expected.txt
index 8384906..cd6b3b3 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/remember-bad-password-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/remember-bad-password-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 rdar://problem/7062824 A wrong password entered for site or proxy auth remains in WebCore credential storage, and is sent with subsequent requests.
 
 This test counts the number of failed requests server side.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/reopen-encoding-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/reopen-encoding-expected.txt
index 3342da8..35baf62 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/reopen-encoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/reopen-encoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test verifies that XMLHttpRequest properly handles Content-Type when it is reused.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding-expected.txt
index 172f0ab..89a3821 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 12099: XMLHttpRequest shouldn't honor a charset specified via setRequestHeader.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding2-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding2-expected.txt
index b2e2546..ca3b8ba 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding2-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding2-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 34653: XMLHttpRequest should force to send content-type as charset equals UTF-8.
 
 Test1 (setRequestHeader was not called): FAILURE: 'text/plain;charset=UTF-8 '
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding3-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding3-expected.txt
index 2978685..4928c62 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding3-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding3-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for http://crbug.com/277526: XMLHttpRequest normalizes the data sent to the server into Unicode NFC.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding4-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding4-expected.txt
index 2978685..4928c62 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding4-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/request-encoding4-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for http://crbug.com/277526: XMLHttpRequest normalizes the data sent to the server into Unicode NFC.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding-expected.txt
index 40f0450..c157516 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 5744 - correctly determine the encoding of XMLHttpRequest responses.
 
 Plain text, UTF-8 as default: Проверка
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding2-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding2-expected.txt
index ef8f695..d775b90 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding2-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/response-encoding2-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that XHR response text is not normalized.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/serialize-document-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/serialize-document-expected.txt
index 5d2025e..f6a801d 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/serialize-document-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/serialize-document-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 18421: XMLHttpRequest does not properly encode & and < in outgoing messages.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/set-dangerous-headers-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/set-dangerous-headers-expected.txt
index 4d9effe..9349735 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/set-dangerous-headers-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/set-dangerous-headers-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: Refused to set unsafe header "ACCEPT-CHARSET"
 CONSOLE ERROR: Refused to set unsafe header "ACCEPT-ENCODING"
 CONSOLE ERROR: Refused to set unsafe header "ACCESS-CONTROL-REQUEST-HEADERS"
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-post-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-post-sync-expected.txt
index dcc9e9d..53c8a64 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-post-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-post-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/reply.xml. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 Test that a simple cross-origin request to a server that responds (but does not permit cross-origin requests) is indistinguishable from one that does not exist. Should say PASS:
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-sync-expected.txt
index dcc9e9d..53c8a64 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/simple-cross-origin-denied-events-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/resources/reply.xml. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 Test that a simple cross-origin request to a server that responds (but does not permit cross-origin requests) is indistinguishable from one that does not exist. Should say PASS:
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/state-after-network-error-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/state-after-network-error-expected.txt
index b2d6bfb..d275fe3 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/state-after-network-error-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/state-after-network-error-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that request state reaches DONE even if a network error occurs.
 
 Should say SUCCESS:
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/sync-after-async-same-resource-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/sync-after-async-same-resource-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/sync-after-async-same-resource-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/sync-after-async-same-resource-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/timeout/xmlhttprequest-timeout-synconmain-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/timeout/xmlhttprequest-timeout-synconmain-expected.txt
index 33a6a93..803e3f3 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/timeout/xmlhttprequest-timeout-synconmain-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/timeout/xmlhttprequest-timeout-synconmain-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Description
 
 This test validates that the XHR2 timeout property behaves as expected in async cases in document (i.e. non-worker) context.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/upload-onloadend-event-after-sync-requests-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/upload-onloadend-event-after-sync-requests-expected.txt
index c7b2363..7f7ada4 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/upload-onloadend-event-after-sync-requests-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/upload-onloadend-event-after-sync-requests-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test case for bug 40952: Onloadend event is not supported in XMLHttpRequest
 
 Verify that a loadend ProgressEvent is dispatched after load ProgressEvent when a synchronous upload request completes normally.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-simple-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-simple-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-simple-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/002-simple-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/003-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/003-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/003-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/003-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/004-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/004-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/004-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/004-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/005-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/005-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/005-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/005-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/007-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/007-expected.txt
index 9976b12..575136b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/007-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/007-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
 
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/008-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/008-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/008-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/008-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/010-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/010-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/010-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/010-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/011-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/011-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/011-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/011-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/012-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/012-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/012-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/012-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/014-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/014-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/014-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/014-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/015-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/015-expected.txt
index 7ef22e9..b97e899 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/015-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/015-expected.txt
@@ -1 +1,2 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/018-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/018-expected.txt
index 1f87e0a..2442cba 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/018-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/web-apps/018-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 The following line should say "PASS" twice, and you should not get any alerts or see the word "FAIL" anywhere on the next line.
 
 PASS PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xhr-to-blob-in-isolated-world-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xhr-to-blob-in-isolated-world-expected.txt
index d4bde29..720ca7b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xhr-to-blob-in-isolated-world-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xhr-to-blob-in-isolated-world-expected.txt
@@ -1,2 +1,3 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This tests an isolated script's ability to XHR a blob that is in its security origin, which is not the same as the document's security origin.
 We pass if there are no console errors.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xml-encoding-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xml-encoding-expected.txt
index 9d70bfb..22374ddb 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xml-encoding-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xml-encoding-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test XMLHttpRequest and document.xmlEncoding interaction.
 
 The request body should contain the word "Проверка".
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-latin1-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-latin1-expected.txt
index ec26035..500a956 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-latin1-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-latin1-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that setRequestHeader encodes header values as latin-1
 
 PASSED: non-latin-1 header value throws
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt
index 908b113..592a40c7 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-missing-file-exception-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 This test checks that no exception is raised when getting a 404 HTTP response - that's success from XHR point of view.
 
 PASS: No exception.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-name-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-name-expected.txt
index f9a759b..db40599 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-name-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-name-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that setRequestHeader throws a SYNTAX_ERR exception when called with an empty header name.
 
 SUCCESS: got exception SyntaxError: Failed to execute 'setRequestHeader' on 'XMLHttpRequest': '' is not a valid HTTP header field name.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-value-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-value-expected.txt
index ef47353..7196b7b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-value-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-setrequestheader-no-value-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test that setRequestHeader can be used to set headers that have a name, but no value.
 
 SUCCESS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-progress-events-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-progress-events-expected.txt
index b418333..ed1a038 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-progress-events-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-progress-events-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8000/xmlhttprequest/xmlhttprequest-sync-vs-async-assertion-failure.html. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 Test for:
 
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-timers-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-timers-expected.txt
index bb78da0..6f8f1d8 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-timers-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-no-timers-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for: bug 68238: [soup] Crash while loading http://www.jusco.cn This test verifies that WebCore timers do not fire during synchronous XMLHttpRequests.
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-vs-async-assertion-failure-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-vs-async-assertion-failure-expected.txt
index a56ad8a..c18476b 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-vs-async-assertion-failure-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-sync-vs-async-assertion-failure-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 You should see "PASS" once:
 
 PASS
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unload-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unload-sync-expected.txt
index 91f4031..2030169 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unload-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unload-sync-expected.txt
@@ -1,4 +1,5 @@
 frame "ifr" - has 1 onunload handler(s)
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test behavior of sync XHR during unload
 
 PASS: sync XHR completed successfully
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unsafe-redirect-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unsafe-redirect-expected.txt
index 24ef1ba..0dd39c9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unsafe-redirect-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/xmlhttprequest-unsafe-redirect-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://localhost:8080/xmlhttprequest/resources/forbidden.txt. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8000' is therefore not allowed access.
 This tests that unsafe redirects won't be allowed when making an XMLHttpRequest.
 Sync XHR started.
diff --git a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/zero-length-response-sync-expected.txt b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/zero-length-response-sync-expected.txt
index f374a16..1e3aa33 100644
--- a/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/zero-length-response-sync-expected.txt
+++ b/third_party/WebKit/LayoutTests/http/tests/xmlhttprequest/zero-length-response-sync-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test for bug 5924 - zero-length responses to XMLHTTPRequest mishandled.
 
 after creation: Uninitialized
diff --git a/third_party/WebKit/LayoutTests/inspector/reveal-objects-expected.txt b/third_party/WebKit/LayoutTests/inspector/reveal-objects-expected.txt
index 366e2010..c8964cf 100644
--- a/third_party/WebKit/LayoutTests/inspector/reveal-objects-expected.txt
+++ b/third_party/WebKit/LayoutTests/inspector/reveal-objects-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests object revelation in the UI.
 
 
diff --git a/third_party/WebKit/LayoutTests/inspector/sources/debugger/async-callstack-xhrs-expected.txt b/third_party/WebKit/LayoutTests/inspector/sources/debugger/async-callstack-xhrs-expected.txt
index bc7899a..cf67f37 100644
--- a/third_party/WebKit/LayoutTests/inspector/sources/debugger/async-callstack-xhrs-expected.txt
+++ b/third_party/WebKit/LayoutTests/inspector/sources/debugger/async-callstack-xhrs-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests asynchronous call stacks for XHRs.
 
 Set timer for test function.
diff --git a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/22-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/22-expected.txt
index cd00846..c35e224 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/22-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/22-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=http%3A%2F%2Flocalhost%3A8000%00. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/27-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/27-expected.txt
index bb4b40c..5a40009 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/27-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/27-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=%00*. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/28-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/28-expected.txt
index b7e28e8..815d797 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/28-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/28-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=*%00. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/29-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/29-expected.txt
index 615bade..0bf948c 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/29-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/29-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=%27*%27. The 'Access-Control-Allow-Origin' header contains the invalid value ''*''. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/30-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/30-expected.txt
index 2a02c3d..20ebac1 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/30-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/30-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=%22*%22. The 'Access-Control-Allow-Origin' header contains the invalid value '"*"'. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/36-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/36-expected.txt
index 32b0267..b34fad0 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/36-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/http/tests/xmlhttprequest/origin-exact-matching/36-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 CONSOLE ERROR: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-allow-lists.php?origin=%00http%3A%2F%2Flocalhost%3A8000. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed access.
 
 
diff --git a/third_party/WebKit/LayoutTests/traversal/node-iterator-009-expected.txt b/third_party/WebKit/LayoutTests/traversal/node-iterator-009-expected.txt
index e462acb..8d8c6ac 100644
--- a/third_party/WebKit/LayoutTests/traversal/node-iterator-009-expected.txt
+++ b/third_party/WebKit/LayoutTests/traversal/node-iterator-009-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XML doc elements:
 
 records
diff --git a/third_party/WebKit/LayoutTests/traversal/tree-walker-006-expected.txt b/third_party/WebKit/LayoutTests/traversal/tree-walker-006-expected.txt
index e462acb..8d8c6ac 100644
--- a/third_party/WebKit/LayoutTests/traversal/tree-walker-006-expected.txt
+++ b/third_party/WebKit/LayoutTests/traversal/tree-walker-006-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 XML doc elements:
 
 records
diff --git a/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/gl-object-get-calls-expected.txt b/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/gl-object-get-calls-expected.txt
index 282e724..46022b0 100644
--- a/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/gl-object-get-calls-expected.txt
+++ b/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/gl-object-get-calls-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Test of get calls against GL objects like getBufferParameter, etc.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/uniform-location-expected.txt b/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/uniform-location-expected.txt
index 8006db3..94551b01 100644
--- a/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/uniform-location-expected.txt
+++ b/third_party/WebKit/LayoutTests/virtual/gpu/fast/canvas/webgl/uniform-location-expected.txt
@@ -1,3 +1,4 @@
+CONSOLE WARNING: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.
 Tests the WebGLUniformLocation API
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index fd404a2..4d3ff96 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -905,6 +905,7 @@ public:
     bool processingLoadEvent() const { return m_loadEventProgress == LoadEventInProgress; }
     bool loadEventFinished() const { return m_loadEventProgress >= LoadEventCompleted; }
     bool unloadStarted() const { return m_loadEventProgress >= PageHideInProgress; }
+    bool processingBeforeUnload() const { return m_loadEventProgress == BeforeUnloadEventInProgress; }
 
     void setContainsPlugins() { m_containsPlugins = true; }
     bool containsPlugins() const { return m_containsPlugins; }
diff --git a/third_party/WebKit/Source/core/frame/UseCounter.cpp b/third_party/WebKit/Source/core/frame/UseCounter.cpp
index 7ed97b3..05b34ec 100644
--- a/third_party/WebKit/Source/core/frame/UseCounter.cpp
+++ b/third_party/WebKit/Source/core/frame/UseCounter.cpp
@@ -807,6 +807,9 @@ String UseCounter::deprecationMessage(Feature feature)
     case ConsoleTimelineEnd:
         return "console.timelineEnd is deprecated. Please use the console.timeEnd instead.";
 
+    case XMLHttpRequestSynchronousInNonWorkerOutsideBeforeUnload:
+        return "Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/.";
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
         return String();
diff --git a/third_party/WebKit/Source/core/frame/UseCounter.h b/third_party/WebKit/Source/core/frame/UseCounter.h
index 87e49f4..eb92301 100644
--- a/third_party/WebKit/Source/core/frame/UseCounter.h
+++ b/third_party/WebKit/Source/core/frame/UseCounter.h
@@ -548,6 +548,7 @@ public:
         ScriptElementWithInvalidTypeHasSrc = 578,
         TimelineStart = 579,
         ElementBaseURIFromXMLBase = 580,
+        XMLHttpRequestSynchronousInNonWorkerOutsideBeforeUnload = 581,
 
         // Add new features immediately above this line. Don't change assigned
         // numbers of any item, and don't reuse removed slots.
diff --git a/third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequest.cpp b/third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequest.cpp
index b8063eb2..1a0f384 100644
--- a/third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequest.cpp
+++ b/third_party/WebKit/Source/core/xmlhttprequest/XMLHttpRequest.cpp
@@ -607,6 +607,13 @@ void XMLHttpRequest::open(const AtomicString& method, const KURL& url, bool asyn
             exceptionState.throwDOMException(InvalidAccessError, "Synchronous requests must not set a timeout.");
             return;
         }
+
+        // Here we just warn that firing sync XHR's may affect responsiveness.
+        // Eventually sync xhr will be deprecated and an "InvalidAccessError" exception thrown.
+        // Refer : https://xhr.spec.whatwg.org/#sync-warning
+        // Use count for XHR synchronous requests on main thread only.
+        if (!document()->processingBeforeUnload())
+            UseCounter::countDeprecation(executionContext(), UseCounter::XMLHttpRequestSynchronousInNonWorkerOutsideBeforeUnload);
     }
 
     m_method = FetchUtils::normalizeMethod(method);