Implementation of shared worker code path for WebView file system permission.

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_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 299 matching lines @@
       const GURL& url,
       const base::string16& name,
       const base::string16& display_name,
       unsigned long estimated_size,
       ResourceContext* context,
       const std::vector<std::pair<int, int> >& render_frames);
 
   // Allow the embedder to control if access to file system by a shared worker
   // is allowed.
   // This is called on the IO thread.
-  virtual bool AllowWorkerFileSystem(
+  virtual void AllowWorkerFileSystem(
       const GURL& url,
       ResourceContext* context,
-      const std::vector<std::pair<int, int> >& render_frames);
+      const std::vector<std::pair<int, int> >& render_frames,
+      base::Callback<void(bool)> callback);
 
   // Allow the embedder to control if access to IndexedDB by a shared worker
   // is allowed.
   // This is called on the IO thread.
   virtual bool AllowWorkerIndexedDB(
       const GURL& url,
       const base::string16& name,
       ResourceContext* context,
       const std::vector<std::pair<int, int> >& render_frames);
 
@@ skipping 313 matching lines @@
   // Allows an embedder to provide its own ExternalVideoSurfaceContainer
   // implementation.  Return NULL to disable external surface video.
   virtual ExternalVideoSurfaceContainer*
   OverrideCreateExternalVideoSurfaceContainer(WebContents* web_contents);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_