Notify CloseFile from Pepper to FileSystem.

chrome/browser/chromeos/gdata/gdata_file_system_proxy.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 CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_PROXY_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_PROXY_H_
 #pragma once
 
 #include "webkit/chromeos/fileapi/remote_file_system_proxy.h"
 
@@ skipping 45 matching lines @@
       callback) OVERRIDE;
   virtual void CreateWritableSnapshotFile(
       const GURL& path,
       const fileapi::WritableSnapshotFile& callback) OVERRIDE;
   virtual void OpenFile(
       const GURL& path,
       int file_flags,
       base::ProcessHandle peer_handle,
       const fileapi::FileSystemOperationInterface::OpenFileCallback&
           callback) OVERRIDE;
+  virtual void NotifyCloseFile(const GURL& path) OVERRIDE;
   // TODO(zelidrag): More methods to follow as we implement other parts of FSO.
 
  private:
   // Checks if a given |url| belongs to this file system. If it does,
   // the call will return true and fill in |file_path| with a file path of
   // a corresponding element within this file system.
   static bool ValidateUrl(const GURL& url, FilePath* file_path);
 
   // Helper callback for relaying reply for metadata retrieval request to the
   // calling thread.
@@ skipping 57 matching lines @@
   // GDataFileSystemProxy is owned by Profile, which outlives
   // GDataFileSystemProxy, which is owned by CrosMountPointProvider (i.e. by
   // the time Profile is removed, the file manager is already gone). Hence
   // it's safe to use this as a raw pointer.
   GDataFileSystemInterface* file_system_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_PROXY_H_