Fix a bug that the language list is not drawn properly.

chrome/browser/resources/options/chromeos_language_options.js

 // Copyright (c) 2010 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.
 
 cr.define('options', function() {
 
   const OptionsPage = options.OptionsPage;
   const AddLanguageOverlay = options.language.AddLanguageOverlay;
   const LanguageList = options.language.LanguageList;
 
@@ skipping 82 matching lines @@
         label.languageCode = inputMethod.languageCode;
 
         inputMethodList.appendChild(label);
       }
       // Listen to pref change once the input method list is initialized.
       Preferences.getInstance().addEventListener(this.preloadEnginesPref,
           cr.bind(this.handlePreloadEnginesPrefChange_, this));
     },
 
     /**
+     * Handles OptionsPage's visible property change event.
+     * @param {Event} e Property change event.
+     * @private
+     */
+    handleVisibleChange_: function(e) {
+      if (!this.languageListInitalized_ && this.visible) {
+        this.languageListInitalized_ = true;
+        $('language-options-list').redraw();
+      }
+    },
+
+    /**
      * Handles languageOptionsList's change event.
      * @param {Event} e Change event.
      * @private
      */
     handleLanguageOptionsListChange_: function(e) {
       var languageOptionsList = $('language-options-list');
       var index = languageOptionsList.selectionModel.selectedIndex;
       if (index == -1)
         return;
 
@@ skipping 238 matching lines @@
     // from UX.
     alert(localStrings.getString('restart_required'));
   };
 
   // Export
   return {
     LanguageOptions: LanguageOptions
   };
 
 });