Make it so that allow_js_access: false can be used with background pages created by window.open.

content/browser/mock_content_browser_client.h

 // 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.
 
 #ifndef CONTENT_BROWSER_MOCK_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_BROWSER_MOCK_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 
@@ skipping 114 matching lines @@
           int render_process_id) OVERRIDE;
   virtual void ShowDesktopNotification(
       const content::ShowDesktopNotificationHostMsgParams& params,
       int render_process_id,
       int render_view_id,
       bool worker) OVERRIDE;
   virtual void CancelDesktopNotification(
       int render_process_id,
       int render_view_id,
       int notification_id) OVERRIDE;
-  virtual bool CanCreateWindow(
+  virtual CanCreateWindowResult CanCreateWindow(
       const GURL& opener_url,
       const GURL& source_origin,
       WindowContainerType container_type,
       ResourceContext* context,
       int render_process_id) OVERRIDE;
   virtual std::string GetWorkerProcessTitle(const GURL& url,
                                             ResourceContext* context) OVERRIDE;
   virtual void ResourceDispatcherHostCreated() OVERRIDE;
   virtual SpeechRecognitionManagerDelegate*
       GetSpeechRecognitionManagerDelegate() OVERRIDE;
@@ skipping 33 matching lines @@
  private:
   // Temporary directory for GetDefaultDownloadDirectory.
   ScopedTempDir download_dir_;
 
   DISALLOW_COPY_AND_ASSIGN(MockContentBrowserClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MOCK_CONTENT_BROWSER_CLIENT_H_