NTP5: Fine tuning of Apps implementation.

chrome/browser/resources/ntp_search/thumbnail_page.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.
 
 cr.define('ntp', function() {
   'use strict';
 
   var Tile = ntp.Tile;
   var TilePage = ntp.TilePage;
 
@@ skipping 144 matching lines @@
     return el;
   }
 
   ThumbnailPage.prototype = {
     __proto__: TilePage.prototype,
 
     /**
      * Initializes a ThumbnailPage.
      */
     initialize: function() {
+      TilePage.prototype.initialize.apply(this, arguments);
+
       this.classList.add('thumbnail-page');
     },
 
     /** @override */
     shouldAcceptDrag: function(e) {
       return false;
     },
   };
 
   return {
     Thumbnail: Thumbnail,
     ThumbnailPage: ThumbnailPage,
   };
 });