[Android WebViewShell] Add inclusion test for webview exposed stable interfaces.

This patch adds a test to make sure the exposed stable interfaces in blink
match with the exposed interfaces in webview. All interfaces listed in
virtual/stable/webexposed/global-interface-listing-expected.txt are checked
except the excluded interfaces which are listed in not-webview-exposed.txt.

BUG=514217

Review URL: https://codereview.chromium.org/1261953004

Cr-Commit-Position: refs/heads/master@{#341370}

3 files changed, 41 insertions, 0 deletions

diff --git a/android_webview/android_webview_shell_test_apk.isolate b/android_webview/android_webview_shell_test_apk.isolate
index 09b7b70..85e85d3 100644
--- a/android_webview/android_webview_shell_test_apk.isolate
+++ b/android_webview/android_webview_shell_test_apk.isolate
@@ -8,6 +8,7 @@
       'variables': {
         'files': [
           '<(DEPTH)/android_webview/tools/WebViewShell/test/',
+          '<(DEPTH)/third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt',
           '<(DEPTH)/third_party/WebKit/LayoutTests/webexposed/global-interface-listing.html',
           '<(DEPTH)/third_party/WebKit/LayoutTests/webexposed/global-interface-listing-expected.txt',
           '<(DEPTH)/third_party/WebKit/LayoutTests/webexposed/resources/global-interface-listing.js',
diff --git a/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewLayoutTest.java b/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewLayoutTest.java
index d78dd60..4d6414a 100644
--- a/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewLayoutTest.java
+++ b/android_webview/tools/WebViewShell/src/org/chromium/webview_shell/WebViewLayoutTest.java
@@ -33,8 +33,12 @@ public class WebViewLayoutTest
             Environment.getExternalStorageDirectory().getAbsolutePath() + "/";
     private static final String BASE_WEBVIEW_TEST_PATH = "android_webview/tools/WebViewShell/test/";
     private static final String BASE_BLINK_TEST_PATH = "third_party/WebKit/LayoutTests/";
+    private static final String BASE_BLINK_STABLE_TEST_PATH =
+            BASE_BLINK_TEST_PATH + "virtual/stable/";
     private static final String PATH_WEBVIEW_PREFIX = EXTERNAL_PREFIX + BASE_WEBVIEW_TEST_PATH;
     private static final String PATH_BLINK_PREFIX = EXTERNAL_PREFIX + BASE_BLINK_TEST_PATH;
+    private static final String PATH_BLINK_STABLE_PREFIX =
+            EXTERNAL_PREFIX + BASE_BLINK_STABLE_TEST_PATH;
 
     private static final long TIMEOUT_SECONDS = 20;
 
@@ -100,6 +104,38 @@ public class WebViewLayoutTest
         assertEquals("Unexpected webview interfaces found", "", unexpected.toString());
     }
 
+    public void testWebViewIncludedStableInterfaces() throws Exception {
+        ensureJsTestCopied();
+        loadUrlWebViewAsync("file://" + PATH_BLINK_PREFIX
+                + "webexposed/global-interface-listing.html", mTestActivity);
+        String blinkStableExpected = readFile(PATH_BLINK_STABLE_PREFIX
+                + "webexposed/global-interface-listing-expected.txt");
+        String webviewExcluded = readFile(PATH_WEBVIEW_PREFIX
+                + "webexposed/not-webview-exposed.txt");
+        mTestActivity.waitForFinish(TIMEOUT_SECONDS, TimeUnit.SECONDS);
+        String result = mTestActivity.getTestResult();
+
+        HashMap<String, HashSet<String>> webviewExcludedInterfacesMap =
+                buildHashMap(webviewExcluded);
+        HashMap<String, HashSet<String>> webviewInterfacesMap = buildHashMap(result);
+        HashMap<String, HashSet<String>> blinkStableInterfacesMap =
+                buildHashMap(blinkStableExpected);
+        StringBuilder missing = new StringBuilder();
+
+        // Check that each stable blink interface is present in webview except the excluded
+        // interfaces.
+        for (String interfaceS : blinkStableInterfacesMap.keySet()) {
+            // TODO(timvolodine): consider implementing matching of subsets as well.
+            HashSet<String> subsetExcluded = webviewExcludedInterfacesMap.get(interfaceS);
+            if (subsetExcluded != null && subsetExcluded.isEmpty()) continue;
+
+            if (webviewInterfacesMap.get(interfaceS) == null) {
+                missing.append(interfaceS + "\n");
+            }
+        }
+        assertEquals("Missing webview interfaces found", "", missing.toString());
+    }
+
     // test helper methods
 
     private void runWebViewLayoutTest(final String fileName, final String fileNameExpected)
diff --git a/android_webview/tools/WebViewShell/test/webexposed/not-webview-exposed.txt b/android_webview/tools/WebViewShell/test/webexposed/not-webview-exposed.txt
index d0c323e..1d1c169 100644
--- a/android_webview/tools/WebViewShell/test/webexposed/not-webview-exposed.txt
+++ b/android_webview/tools/WebViewShell/test/webexposed/not-webview-exposed.txt
@@ -17,6 +17,10 @@ interface Notification
 # not yet supported in webview.
 interface SharedWorker
 
+# push API not supported in webview
+interface PushManager
+interface PushSubscription
+
 # TODO(timvolodine): check screen orientation lock api
 # TODO(timvolodine): check notifications in service workers
 # TODO(timvolodine): add Presentation API