Disable "BackgroundTest.ActiveOrInactive" due to flakiness.

chrome/browser/resources/chromeos/chromevox/cvox2/background/background_test.extjs

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Include test fixture.
 GEN_INCLUDE(['../../testing/chromevox_next_e2e_test_base.js',
              '../../testing/assert_additions.js']);
 
 GEN_INCLUDE(['../../testing/mock_feedback.js']);
 
@@ skipping 448 matching lines @@
   assertEquals('/^()$/', Background.globsToRegExp_([]).toString());
   assertEquals(
       '/^(http:\\/\\/host\\/path\\+here)$/',
       Background.globsToRegExp_(['http://host/path+here']).toString());
   assertEquals(
       '/^(url1.*|u.l2|.*url3)$/',
       Background.globsToRegExp_(['url1*', 'u?l2', '*url3']).toString());
 });
 
 // Flaky, see http://crbug.com/635032
-TEST_F('BackgroundTest', 'ActiveOrInactive', function() {
+TEST_F('BackgroundTest', 'DISABLED_ActiveOrInactive', function() {
   var mockFeedback = this.createMockFeedback();
   this.runWithLoadedTree(function() {/*!
       <a href="a">a</a>
       <button>b</button>
       <input type="text"></input>
     */},
     function(rootNode) {
       var focusButton = function() {
         rootNode.find({role: RoleType.button}).focus();
       };
@@ skipping 645 matching lines @@
           .call(doCmd('nextHeading' + level))
           .expectSpeech('No next level ' + level + ' heading.')
           .call(doCmd('previousHeading' + level))
           .expectSpeech('No previous level ' + level + ' heading.');
     };
     for (var i = 1; i <= 6; i++)
       makeLevelAssertions(i);
     mockFeedback.replay();
   });
 });