Notify CloseFile from Pepper to FileSystem.

chrome/browser/chromeos/gdata/gdata_file_system_proxy.cc

 // 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.
 
 #include "chrome/browser/chromeos/gdata/gdata_file_system_proxy.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 385 matching lines @@
   }
 
   file_system_->GetFileByPath(file_path,
                               base::Bind(&OnGetFileByPathForOpen,
                                          callback,
                                          file_flags,
                                          peer_handle),
                               GetDownloadDataCallback());
 }
 
+void GDataFileSystemProxy::NotifyCloseFile(const FileSystemURL& url) {
+  // TODO(kinaba,zelidrag): crbug.com/132236.
+  // Once OpenFile() for writing is implemented, we also need to implement the
+  // corresponding NotifyCloseFile for committing dirty cache.
+}
+
 void GDataFileSystemProxy::CreateSnapshotFile(
     const FileSystemURL& file_url,
     const FileSystemOperationInterface::SnapshotFileCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   FilePath file_path;
   if (!ValidateUrl(file_url, &file_path)) {
     MessageLoopProxy::current()->PostTask(FROM_HERE,
          base::Bind(callback,
                     base::PLATFORM_FILE_ERROR_NOT_FOUND,
@@ skipping 154 matching lines @@
 
 void GDataFileSystemProxy::CloseWritableSnapshotFile(
     const FilePath& virtual_path,
     const FilePath& local_path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   file_system_->CloseFile(virtual_path, base::Bind(&OnClose, virtual_path));
 }
 
 }  // namespace gdata