Refacotring: fix styles of i18n-content names.

chrome/browser/resources/options/language_add_language_overlay.js

 // Copyright (c) 2012 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.
 
 ///////////////////////////////////////////////////////////////////////////////
 // AddLanguageOverlay class:
 
 cr.define('options', function() {
   /** @const */ var OptionsPage = options.OptionsPage;
 
   /**
    * Encapsulated handling of ChromeOS add language overlay page.
    * @constructor
    */
   function AddLanguageOverlay() {
     OptionsPage.call(this, 'addLanguage',
-                     loadTimeData.getString('add_button'),
+                     loadTimeData.getString('addButton'),
                      'add-language-overlay-page');
   }
 
   cr.addSingletonGetter(AddLanguageOverlay);
 
   AddLanguageOverlay.prototype = {
     // Inherit AddLanguageOverlay from OptionsPage.
     __proto__: OptionsPage.prototype,
 
     /**
@@ skipping 24 matching lines @@
         option.textContent = displayText;
         addLanguageList.appendChild(option);
       }
     },
   };
 
   return {
     AddLanguageOverlay: AddLanguageOverlay
   };
 });