fileapi: Add modification time check for FileSystemFileStreamReader

webkit/fileapi/isolated_mount_point_provider.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 "webkit/fileapi/isolated_mount_point_provider.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_path.h"
@@ skipping 126 matching lines @@
   }
 #endif
 
   return new LocalFileSystemOperation(context, operation_context.Pass());
 }
 
 webkit_blob::FileStreamReader*
 IsolatedMountPointProvider::CreateFileStreamReader(
     const FileSystemURL& url,
     int64 offset,
+    const base::Time& expected_modification_time,
     FileSystemContext* context) const {
   return new webkit_blob::LocalFileStreamReader(
       context->task_runners()->file_task_runner(),
-      url.path(), offset, base::Time());
+      url.path(), offset, expected_modification_time);
 }
 
 FileStreamWriter* IsolatedMountPointProvider::CreateFileStreamWriter(
     const FileSystemURL& url,
     int64 offset,
     FileSystemContext* context) const {
   return new LocalFileStreamWriter(url.path(), offset);
 }
 
 FileSystemQuotaUtil* IsolatedMountPointProvider::GetQuotaUtil() {
   // No quota support.
   return NULL;
 }
 
 void IsolatedMountPointProvider::DeleteFileSystem(
     const GURL& origin_url,
     FileSystemType type,
     FileSystemContext* context,
     const DeleteFileSystemCallback& callback) {
   NOTREACHED();
   callback.Run(base::PLATFORM_FILE_ERROR_INVALID_OPERATION);
 }
 
 }  // namespace fileapi