Discard duplicate includes of files from storage

storage/browser/fileapi/local_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 "storage/browser/fileapi/local_file_stream_writer.h"
 
-#include "base/callback.h"
 #include "base/message_loop/message_loop.h"
 #include "net/base/file_stream.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 
 namespace storage {
 
 namespace {
 
 const int kOpenFlagsForWrite = base::File::FLAG_OPEN |
@@ skipping 230 matching lines @@
     return false;
 
   net::CompletionCallback pending_cancel = cancel_callback_;
   has_pending_operation_ = false;
   cancel_callback_.Reset();
   pending_cancel.Run(net::OK);
   return true;
 }
 
 }  // namespace storage