Revert 271459 "Remove stray platform_file.h from webkit"

trunk/src/webkit/browser/fileapi/local_file_stream_writer.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_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_
 #define WEBKIT_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_
 
 #include <utility>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/platform_file.h"
 #include "base/task_runner.h"
 #include "webkit/browser/fileapi/file_stream_writer.h"
 #include "webkit/browser/webkit_storage_browser_export.h"
 
 namespace content {
 class LocalFileStreamWriterTest;
 }
 
 namespace net {
 class FileStream;
@@ skipping 65 matching lines @@
   scoped_ptr<net::FileStream> stream_impl_;
   net::CompletionCallback cancel_callback_;
 
   base::WeakPtrFactory<LocalFileStreamWriter> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(LocalFileStreamWriter);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_LOCAL_FILE_STREAM_WRITER_H_