Fix issues with sending tts queue lots of utterances

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 979 matching lines @@
     </div>
   */}, function(root) {
     var assertRangeHasText = function(text) {
       return function() {
         assertEquals(text,
                      ChromeVoxState.instance.getCurrentRange().start.node.name);
       };
     };
 
     mockFeedback.call(doCmd('nextEditText'))
-        .expectSpeech('Top News')
+        .expectSpeech('Top News Most Popular Sports')
         .call(doCmd('nextHeading'))
         .expectSpeech('Top News')
         .call(assertRangeHasText('Top News'))
         .call(doCmd('nextHeading'))
         .expectSpeech('Most Popular')
         .call(assertRangeHasText('Most Popular'))
         .call(doCmd('nextHeading'))
         .expectSpeech('Sports')
         .call(assertRangeHasText('Sports'))
         .replay();
@@ skipping 209 matching lines @@
         .call(doCmd('nextWord'))
         .expectBraille(text, {startIndex: 5, endIndex: 7})  // is
         .call(doCmd('previousWord'))
         .expectBraille(text, {startIndex: 0, endIndex: 4})  // This
         .call(doCmd('nextLine'))
         // Ensure nothing is selected when the range covers the entire line.
         .expectBraille('with a second line', {startIndex: -1, endIndex: -1})
         .replay();
   });
 });