Refactor about:tracing to support linux kernel traces.

Review URL: http://codereview.chromium.org/8968024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@115171 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 19 insertions, 7 deletions

diff --git a/chrome/browser/resources/tracing/test_utils.js b/chrome/browser/resources/tracing/test_utils.js
index 09fc2d4..8ae3c83 100644
--- a/chrome/browser/resources/tracing/test_utils.js
+++ b/chrome/browser/resources/tracing/test_utils.js
@@ -5,19 +5,31 @@
 /**
  * @fileoverview Helper functions for use in tracing tests.
  */
+
+
+/**
+ * goog.testing.assertion's assertEquals tweaked to do equality-to-a-constant.
+ * @param {*} a First value.
+ * @param {*} b Second value.
+ */
+function assertAlmostEquals(a, b) {
+  _validateArguments(2, arguments);
+  var var1 = nonCommentArg(1, 2, arguments);
+  var var2 = nonCommentArg(2, 2, arguments);
+  _assert(commentArg(2, arguments), Math.abs(var1 - var2) < 0.00001,
+          'Expected ' + _displayStringForValue(var1) + ' but was ' +
+          _displayStringForValue(var2));
+}
+
 cr.define('test_utils', function() {
-  function getJSON(url, cb) {
+  function getAsync(url, cb) {
     var req = new XMLHttpRequest();
     req.open('GET', url, true);
     req.onreadystatechange = function(aEvt) {
       if (req.readyState == 4) {
         window.setTimeout(function() {
           if (req.status == 200) {
-            var resp = JSON.parse(req.responseText);
-            if (resp.traceEvents)
-              cb(resp.traceEvents);
-            else
-              cb(resp);
+            cb(req.responseText);
           } else {
             console.log('Failed to load ' + url);
           }
@@ -27,6 +39,6 @@ cr.define('test_utils', function() {
     req.send(null);
   }
   return {
-    getJSON: getJSON
+    getAsync: getAsync
   };
 });