Revert 198844 "Move sequenced_task_runner to base/task"

trunk/src/webkit/fileapi/sandbox_file_stream_writer.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/sandbox_file_stream_writer.h"
 
 #include "base/files/file_util_proxy.h"
 #include "base/platform_file.h"
-#include "base/task/sequenced_task_runner.h"
+#include "base/sequenced_task_runner.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "webkit/blob/local_file_stream_reader.h"
 #include "webkit/fileapi/file_observers.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_operation.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/local_file_stream_writer.h"
 #include "webkit/quota/quota_manager.h"
 
@@ skipping 214 matching lines @@
   return true;
 }
 
 int SandboxFileStreamWriter::Flush(const net::CompletionCallback& callback) {
   // For now, Flush is meaningful only for local native file access. It is no-op
   // for sandboxed filesystem files (see the discussion in crbug.com/144790).
   return net::OK;
 }
 
 }  // namespace fileapi