Notify CloseFile from Pepper to FileSystem.

webkit/plugins/ppapi/plugin_delegate.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 WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_
 #define WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 404 matching lines @@
                                           bool final_result) = 0;
 
   // Notifies that the index of the currently selected item has been updated.
   virtual void SelectedFindResultChanged(int identifier, int index) = 0;
 
   // Runs a file chooser.
   virtual bool RunFileChooser(
       const WebKit::WebFileChooserParams& params,
       WebKit::WebFileChooserCompletion* chooser_completion) = 0;
 
-  // Sends an async IPC to open a file.
+  // Sends an async IPC to open a local file.
   typedef base::Callback<void (base::PlatformFileError, base::PassPlatformFile)>
       AsyncOpenFileCallback;
   virtual bool AsyncOpenFile(const FilePath& path,
                              int flags,
                              const AsyncOpenFileCallback& callback) = 0;
+
+  // Sends an async IPC to open a file through filesystem API.
+  // When a file is successfully opened, |callback| is invoked with
+  // PLATFORM_FILE_OK, the opened file handle, and a callback function for
+  // notifying that the file is closed. When the users of this function
+  // finished using the file, they must close the file handle and then must call
+  // the supplied callback function.
+  typedef base::Callback<void (base::PlatformFileError)>
+      NotifyCloseFileCallback;
+  typedef base::Callback<
+      void (base::PlatformFileError,
+            base::PassPlatformFile,
+            const NotifyCloseFileCallback&)> AsyncOpenFileSystemURLCallback;
   virtual bool AsyncOpenFileSystemURL(
       const GURL& path,
       int flags,
-      const AsyncOpenFileCallback& callback) = 0;
+      const AsyncOpenFileSystemURLCallback& callback) = 0;
 
   virtual bool OpenFileSystem(
       const GURL& url,
       fileapi::FileSystemType type,
       long long size,
       fileapi::FileSystemCallbackDispatcher* dispatcher) = 0;
   virtual bool MakeDirectory(
       const GURL& path,
       bool recursive,
       fileapi::FileSystemCallbackDispatcher* dispatcher) = 0;
@@ skipping 212 matching lines @@
   virtual webkit_glue::ClipboardClient* CreateClipboardClient() const = 0;
 
   // Returns a Device ID
   virtual std::string GetDeviceID() = 0;
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_