Process events from ChromeVox Panel again.

chrome/browser/resources/chromeos/chromevox/cvox2/background/background.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.
 
 /**
  * @fileoverview The entry point for all ChromeVox2 related code for the
  * background page.
  */
 
 goog.provide('Background');
@@ skipping 499 matching lines @@
         else
           chrome.accessibilityPrivate.setKeyboardListener(true, false);
         return false;
       case 'passThroughMode':
         cvox.ChromeVox.passThroughMode = true;
         cvox.ChromeVox.tts.speak(
             Msgs.getMsg('pass_through_key'), cvox.QueueMode.QUEUE);
         return true;
       case 'openChromeVoxMenus':
         (new PanelCommand(PanelCommandType.OPEN_MENUS)).send();
-        break;
+        return false;
       case 'decreaseTtsRate':
         this.increaseOrDecreaseSpeechProperty_(cvox.AbstractTts.RATE, false);
         break;
       case 'increaseTtsRate':
         this.increaseOrDecreaseSpeechProperty_(cvox.AbstractTts.RATE, true);
         break;
       case 'decreaseTtsPitch':
         this.increaseOrDecreaseSpeechProperty_(cvox.AbstractTts.PITCH, false);
         break;
       case 'increaseTtsPitch':
@@ skipping 301 matching lines @@
     return glob.replace(/[.+^$(){}|[\]\\]/g, '\\$&')
         .replace(/\*/g, '.*')
         .replace(/\?/g, '.');
   }).join('|') + ')$');
 };
 
 /** @type {Background} */
 global.backgroundObj = new Background();
 
 });  // goog.scope