Enable a11y audit for chrome://settings

chrome/browser/ui/webui/options/options_browsertest.js

Index: chrome/browser/ui/webui/options/options_browsertest.js
diff --git a/chrome/browser/ui/webui/options/options_browsertest.js b/chrome/browser/ui/webui/options/options_browsertest.js
index a8c6b5898cef1ac1a894fc1a54c5504ba063df71..367730ab35110d25e4f34095ea42c9776cc1e88a 100644
--- a/chrome/browser/ui/webui/options/options_browsertest.js
+++ b/chrome/browser/ui/webui/options/options_browsertest.js
@@ -46,6 +46,9 @@ OptionsWebUITest.prototype = {
   __proto__: testing.Test.prototype,
 
   /** @override */
+  runAccessibilityChecks: true,
+
+  /** @override */
   accessibilityIssuesAreErrors: true,
 
   /** @override */
@@ -380,6 +383,12 @@ OptionsWebUIExtendedTest.prototype = {
   isAsync: true,
 
   /** @override */
+  runAccessibilityChecks: true,
+
+  /** @override */
+  accessibilityIssuesAreErrors: true,
+
+  /** @override */
   setUp: function() {
       // user-image-stream is a streaming video element used for capturing a
       // user image during OOBE.
@@ -708,7 +717,17 @@ TEST_F('OptionsWebUIExtendedTest', 'CloseOverlayWithHashes', function() {
       this.verifyHistory_(
           ['', 'search#1', 'languages#2', 'addLanguage#3', 'languages#2',
            'search#1'],
-          testDone);
+          function() {

[Dan Beam, 2014/10/21 23:13:56]

function() {
  document.addEventListener('webkitTransitionEnd', function f(e) {
    document.removeEventListener('webkitTransitionEnd', f);
    testDone();
  });
},

[hcarmona, 2014/10/22 17:36:20]

Done.

+            var done = false;
+            document.addEventListener(
+                'webkitTransitionEnd',
+                function finishTest(e) {
+                  if (!done) {
+                    done = true;
+                    testDone();
+                  }
+                });
+          });
     }.bind(this));
   }.bind(this));
 });