Add Worker support for FileSystem API.

chrome/worker/webworkerclient_proxy.h

 // Copyright (c) 2010 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 CHROME_WORKER_WEBWORKERCLIENT_PROXY_H_
 #define CHROME_WORKER_WEBWORKERCLIENT_PROXY_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/task.h"
 #include "ipc/ipc_channel.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebFileSystem.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebWorkerClient.h"
 
 namespace WebKit {
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
 class WebFrame;
 class WebWorker;
 }
 
 class WebWorkerStubBase;
@@ skipping 53 matching lines @@
 
   virtual bool allowDatabase(WebKit::WebFrame* frame,
                              const WebKit::WebString& name,
                              const WebKit::WebString& display_name,
                              unsigned long estimated_size) {
     // TODO(jochen): Check content settings whether access to web databases is
     // allowed.
     return true;
   }
 
+  virtual void openFileSystem(WebKit::WebFileSystem::Type type,
+                              long long size,
+                              WebKit::WebFileSystemCallbacks* callbacks);
+
   void EnsureWorkerContextTerminates();
 
  private:
   bool Send(IPC::Message* message);
 
   int route_id_;
   int appcache_host_id_;
   WebWorkerStubBase* stub_;
   ScopedRunnableMethodFactory<WebWorkerClientProxy> kill_process_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebWorkerClientProxy);
 };
 
 #endif  // CHROME_WORKER_WEBWORKERCLIENT_PROXY_H_