Add keyboard explorer improvements for braille

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 160 matching lines @@
   /**
    * Maps a non-desktop root automation node to a range position suitable for
    *     restoration.
    * @type {WeakMap<AutomationNode, cursors.Range>}
    * @private
    */
   this.focusRecoveryMap_ = new WeakMap();
 };
 
 /**
- * @const {string}
- */
-Background.ISSUE_URL = 'https://code.google.com/p/chromium/issues/entry?' +
-    'labels=Type-Bug,Pri-2,cvox2,OS-Chrome&' +
-    'components=UI>accessibility&' +
-    'description=';
-
-/**
  * Map from gesture names (AXGesture defined in ui/accessibility/ax_enums.idl)
  *     to commands when in Classic mode.
  * @type {Object<string, string>}
  * @const
  */
 Background.GESTURE_CLASSIC_COMMAND_MAP = {
   'click': 'forceClickOnCurrentItem',
   'swipeUp1': 'backward',
   'swipeDown1': 'forward',
   'swipeLeft1': 'left',
@@ skipping 346 matching lines @@
       case cvox.BrailleKeyCommand.ROUTING:
         this.brailleRoutingCommand_(
             content.text,
             // Cast ok since displayPosition is always defined in this case.
             /** @type {number} */ (evt.displayPosition));
         break;
       case cvox.BrailleKeyCommand.CHORD:
         if (!evt.brailleDots)
           return false;
 
-        BrailleCommandHandler.onBrailleCommand(evt.brailleDots);
+        var command = BrailleCommandHandler.getCommand(evt.brailleDots);
+        if (command)
+          CommandHandler.onCommand(command);
         break;
       default:
         return false;
     }
     return true;
   },
 
   /**
    * Returns true if the url should have Classic running.
    * @return {boolean}
@@ skipping 265 matching lines @@
   return new RegExp('^(' + globs.map(function(glob) {
     return glob.replace(/[.+^$(){}|[\]\\]/g, '\\$&')
         .replace(/\*/g, '.*')
         .replace(/\?/g, '.');
   }).join('|') + ')$');
 };
 
 new Background();
 
 });  // goog.scope