Revert of Implement ChromeVox Next menus.

chrome/browser/resources/chromeos/chromevox/cvox2/background/desktop_automation_handler.js

 // Copyright 2015 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.
 
 /**
  * @fileoverview Handles automation from a desktop automation node.
  */
 
 goog.provide('DesktopAutomationHandler');
 
@@ skipping 47 matching lines @@
   willHandleEvent_: function(evt) {
     return !cvox.ChromeVox.isActive;
   },
 
   /**
    * Provides all feedback once ChromeVox's focus changes.
    * @param {!AutomationEvent} evt
    */
   onEventDefault: function(evt) {
     var node = evt.target;
+
     if (!node)
       return;
 
     var prevRange = ChromeVoxState.instance.currentRange;
 
     ChromeVoxState.instance.setCurrentRange(cursors.Range.fromNode(node));
 
     // Check to see if we've crossed roots. Continue if we've crossed roots or
     // are not within web content.
     if (node.root.role == RoleType.desktop ||
@@ skipping 216 matching lines @@
   if (cvox.ChromeVox.isMac)
     return;
   chrome.automation.getDesktop(function(desktop) {
     global.desktopAutomationHandler = new DesktopAutomationHandler(desktop);
   });
 };
 
 DesktopAutomationHandler.init_();
 
 });  // goog.scope