Implement ChromeVox Next menus.

chrome/browser/resources/chromeos/chromevox/testing/chromevox_next_e2e_test_base.js

 // 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(['chromevox_e2e_test_base.js']);
 
 /**
  * Base test fixture for ChromeVox Next end to end tests.
  *
@@ skipping 22 matching lines @@
    */
   runWithLoadedTree: function(doc, callback) {
     callback = this.newCallback(callback);
     chrome.automation.getDesktop(function(r) {
       this.runWithTab(doc, function(newTabUrl) {
         var listener = function(evt) {
           if (!evt.target.docUrl || evt.target.docUrl != newTabUrl)
             return;
 
           r.removeEventListener('loadComplete', listener, true);
-          global.backgroundObj.onGotCommand('nextElement');
+          global.backgroundObj.onGotCommand('nextObject');
           callback && callback(evt.target);
           callback = null;
         };
         r.addEventListener('loadComplete', listener, true);
       }.bind(this));
     }.bind(this));
   },
 
   listenOnce: function(node, eventType, callback, capture) {
     var innerCallback = this.newCallback(function() {
       node.removeEventListener(eventType, innerCallback, capture);
       callback.apply(this, arguments);
     });
     node.addEventListener(eventType, innerCallback, capture);
   }
 };