Notify CloseFile from Pepper to FileSystem.

webkit/plugins/ppapi/plugin_delegate.h

Index: webkit/plugins/ppapi/plugin_delegate.h
diff --git a/webkit/plugins/ppapi/plugin_delegate.h b/webkit/plugins/ppapi/plugin_delegate.h
index 6f851907bdded5f64c17342ce3b35da16abab203..aae5f214ddaf4a0873d83a64081b3709dc07ce21 100644
--- a/webkit/plugins/ppapi/plugin_delegate.h
+++ b/webkit/plugins/ppapi/plugin_delegate.h
@@ -413,16 +413,24 @@ class PluginDelegate {
       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.
+  typedef base::Callback<void (base::PlatformFileError)>
+      NotifyCloseFileCallback;
+  typedef base::Callback<

[yzshen1, 2012/06/29 17:15:52]

Please add a comment about how the callback(s) work, and what is the users'
responsibility when they finish using the file.

[kinaba, 2012/07/03 06:46:35]

Done.

+      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,