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

content/public/browser/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_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 #include <utility>
@@ skipping 318 matching lines @@
       int render_view_id,
       bool worker) = 0;
 
   // Cancels a displayed desktop notification.
   virtual void CancelDesktopNotification(
       int render_process_id,
       int render_view_id,
       int notification_id) = 0;
 
   // Returns true if the given page is allowed to open a window of the given
-  // type.
+  // type. If true is returned, |no_javascript_access| will indicate whether
+  // the window that is created should be scriptable/in the same process.
   // This is called on the IO thread.
   virtual bool CanCreateWindow(
       const GURL& opener_url,
       const GURL& source_origin,
       WindowContainerType container_type,
       content::ResourceContext* context,
-      int render_process_id) = 0;
+      int render_process_id,
+      bool* no_javascript_access) = 0;
 
   // Returns a title string to use in the task manager for a process host with
   // the given URL, or the empty string to fall back to the default logic.
   // This is called on the IO thread.
   virtual std::string GetWorkerProcessTitle(
       const GURL& url, content::ResourceContext* context) = 0;
 
   // Notifies the embedder that the ResourceDispatcherHost has been created.
   // This is when it can optionally add a delegate or ResourceQueueDelegates.
   virtual void ResourceDispatcherHostCreated() = 0;
@@ skipping 66 matching lines @@
   // This is called on a worker thread.
   virtual
       crypto::CryptoModuleBlockingPasswordDelegate* GetCryptoPasswordDelegate(
           const GURL& url) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_