Add additional commands in compat mode.

chrome/browser/resources/chromeos/chromevox/cvox2/background/classic_compatibility.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 Provides a compatibility layer for ChromeVox Classic during the
  * transition to ChromeVox Next.
  */
 
 goog.provide('ClassicCompatibility');
@@ skipping 75 matching lines @@
           break;
         case 'Shift':
           evt.shiftKey = true;
           break;
         case 'Alt':
           evt.altKey = true;
           break;
         case 'Search':
           evt.searchKeyHeld = true;
           break;
+        case 'Space':
+          evt.keyCode = 32;
+          break;
         case 'Left Arrow':
+          evt.keyCode = 37;
+          break;
+        case 'Up Arrow':
           evt.keyCode = 38;
           break;
         case 'Right Arrow':
+          evt.keyCode = 39;
+          break;
+        case 'Down Arrow':
           evt.keyCode = 40;
           break;
         default:
           evt.keyCode = token.charCodeAt(0);
       }
     });
 
     return evt;
   },
 
   /**
    * Maps a Classic command to an approximate equivalent in Next.
    * @param {string} classicCommand
    * @return {string}
    * @private
    */
   getNextCommand_: function(classicCommand) {
     switch (classicCommand) {
       case 'right':
+        return 'nextElement';
       case 'forward':
-        return 'nextElement';
+        return 'nextLine';
       case 'left':
+        return 'previousElement';
       case 'backward':
-        return 'previousElement';
+        return 'previousLine';
+      case 'forceClickOnCurrentItem':
+        return 'doDefault';
       default:
         return classicCommand;
     }
   }
 };