Support role description in automation/ChromeVox

chrome/browser/resources/chromeos/chromevox/cvox2/background/output.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 Provides output services for ChromeVox.
  */
 
 goog.provide('Output');
 goog.provide('Output.EventType');
@@ skipping 1238 matching lines @@
           if (localStorage['useVerboseMode'] == 'false')
             return;
 
           if (this.formatOptions_.auralStyle) {
             speechProps = new Output.SpeechProperties();
             speechProps['relativePitch'] = -0.3;
           }
           options.annotation.push(token);
           var msg = node.role;
           var info = Output.ROLE_INFO_[node.role];
-          if (info) {
+          if (node.roleDescription) {
+            msg = node.roleDescription;
+          } else if (info) {
             if (this.formatOptions_.braille)
               msg = Msgs.getMsg(info.msgId + '_brl');
             else
               msg = Msgs.getMsg(info.msgId);
           } else {
             console.error('Missing role info for ' + node.role);
           }
           this.append_(buff, msg || '', options);
         } else if (token == 'inputType') {
           if (!node.inputType)
@@ skipping 638 matching lines @@
   /**
    * Gets the output buffer for braille.
    * @return {!Spannable}
    */
   get brailleOutputForTest() {
     return this.mergeBraille_(this.brailleBuffer_);
   }
 };
 
 });  // goog.scope