Move accessibility extension translations to grd file.

ui/accessibility/extensions/longdesc/background.js

 /* Copyright (c) 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. */
 
 var ariaDescribedAt = '';
 var longDesc = '';
 
  /**
  * This is called when the extension is first loaded, so that it can be
  * immediately used in all already-open tabs. It's not needed for any
  * new tabs that open after that, the content script will be automatically
  * injected into any new tab.
  */
 chrome.windows.getAll({'populate': true}, function(windows) {
   for (var i = 0; i < windows.length; i++) {
     var tabs = windows[i].tabs;
     for (var j = 0; j < tabs.length; j++) {
       chrome.tabs.executeScript(
         tabs[j].id,
         {file: 'lastRightClick.js'});
     }
   }
 });
 
 /**
  * Add context menu item when the extension is installed.
  */
 chrome.contextMenus.create({
-    "title": "More information...",
+    "title": chrome.i18n.getMessage('openLongDescription'),
     "contexts": ["all"],
     "id": "moreInfo",
     "onclick": contextMenuClicked,
     "enabled": false
   });
 
 /**
  * Add listener for messages from content script.
  * Enable/disable the context menu item.
  */
@@ skipping 17 matching lines @@
  * @param info
  * @param tab
  */
 function contextMenuClicked(info, tab) {
   if (ariaDescribedAt !== '') {
     chrome.tabs.create({url: ariaDescribedAt});
   } else if (longDesc !== '') {
     chrome.tabs.create({url: longDesc});
   }
 }