Implement ChromeVox Next menus.

chrome/browser/resources/chromeos/chromevox/cvox2/background/output_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.
 
 GEN_INCLUDE(['../../testing/assert_additions.js']);
 GEN_INCLUDE(['../../testing/chromevox_next_e2e_test_base.js']);
 
 /**
  * Gets the braille output and asserts that it matches expected values.
  * Annotations in the output that are primitive strings are ignored.
@@ skipping 432 matching lines @@
   this.runWithLoadedTree(function() {/*!
     <div role="menu">
       <div role="menuitem">a</div>
     </div>
   */},
   function(root) {
     var el = root.firstChild.firstChild;
     var range = cursors.Range.fromNode(el);
     var o = new Output().withSpeechAndBraille(range, null, 'navigate');
     assertEqualsJSON({string_:
-            '|Menu|with 1 item|a|Menu item| 1 of 1 ', spans_: [
-        {value: 'name', start: 18, end: 19},
-        {value: {earconId: 'BUTTON'}, start:18, end:19},
-        {value: 'role', start:20, end: 29}
+            '|Menu|a|Menu item| 1 of 1 ', spans_: [
+        {value: {earconId: 'LISTBOX'}, start:0, end:0},
+        {value: 'name', start: 6, end: 7},
+        {value: {earconId: 'BUTTON'}, start:6, end:7},
+        {value: 'role', start:8, end: 17}
     ]}, o.speechOutputForTest);
     checkBrailleOutput(
-        'mnu +1 a mnuitm 1/1',
-        [{value: new Output.NodeSpan(el.parent), start: 0, end: 6},
-         {value: new Output.NodeSpan(el), start: 7, end: 19}],
+        'mnu a mnuitm 1/1',
+        [{value: new Output.NodeSpan(el.parent), start: 0, end: 3},
+         {value: new Output.NodeSpan(el), start: 4, end: 16}],
         o);
   });
 });
 
 TEST_F('OutputE2ETest', 'ListBox', function() {
   this.runWithLoadedTree(function() {/*!
     <select multiple>
       <option>1</option>
       <option>2</option>
     </select>
@@ skipping 108 matching lines @@
   */},
   function(root) {
     var node = root.children[0].firstChild;
     var range = cursors.Range.fromNode(node);
 
     localStorage['useVerboseMode'] = 'false';
     var oWithoutPrev = new Output().withSpeech(range, null, 'navigate');
     assertEquals('|inside', oWithoutPrev.speechOutputForTest.string_);
   });
 });