Use asynchronized api for file system request. [blink] (3/4)

public/web/WebPermissionClient.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 27 matching lines @@
 class WebSecurityOrigin;
 class WebString;
 class WebURL;
 
 class WebPermissionClient {
 public:
     // Controls whether access to Web Databases is allowed for this frame.
     virtual bool allowDatabase(const WebString& name, const WebString& displayName, unsigned long estimatedSize) { return true; }
 
     // Controls whether access to File System is allowed for this frame.
-    virtual bool allowFileSystem() { return true; }
-
-    // Controls whether access to File System is allowed for this frame.
     virtual bool requestFileSystemAccessSync() { return true; }
 
     virtual void requestFileSystemAccessAsync(const WebPermissionCallbacks& callbacks) { }
 
     // Controls whether images are allowed for this frame.
     virtual bool allowImage(bool enabledPerSettings, const WebURL& imageURL) { return enabledPerSettings; }
 
     // Controls whether access to Indexed DB are allowed for this frame.
     virtual bool allowIndexedDB(const WebString& name, const WebSecurityOrigin&) { return true; }
 
@@ skipping 51 matching lines @@
     // Notifies the client that the frame would have executed script if script were enabled.
     virtual void didNotAllowScript() { }
 
 protected:
     ~WebPermissionClient() { }
 };
 
 } // namespace blink
 
 #endif