Revert 274558 "Move some extensions renderer resources to extens..."

trunk/src/chrome/renderer/resources/extensions/platform_app.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.
 
 var $console = window.console;
 
 /**
  * Returns a function that logs a 'not available' error to the console and
  * returns undefined.
  *
@@ skipping 187 matching lines @@
 
 // Disable onunload, onbeforeunload.
 disableSetters(Window.prototype, 'window', ['onbeforeunload', 'onunload']);
 var windowAddEventListener = Window.prototype.addEventListener;
 Window.prototype.addEventListener = function(type) {
   if (type === 'unload' || type === 'beforeunload')
     generateDisabledMethodStub(type)();
   else
     return $Function.apply(windowAddEventListener, window, arguments);
 };