Extensions: Split extensions utility IPC messages into its own file.

chrome/browser/extensions/api/image_writer_private/image_writer_utility_client.cc

 // Copyright 2014 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 "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/image_writer_private/image_writer_utility_client.h"
-#include "chrome/common/chrome_utility_messages.h"
+#include "chrome/common/extensions/chrome_utility_extensions_messages.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 ImageWriterUtilityClient::ImageWriterUtilityClient()
     : message_loop_proxy_(base::MessageLoopProxy::current()) {}
 ImageWriterUtilityClient::~ImageWriterUtilityClient() {}
 
 void ImageWriterUtilityClient::Write(const ProgressCallback& progress_callback,
                                      const SuccessCallback& success_callback,
@@ skipping 129 matching lines @@
                                   base::Bind(error_callback_, message));
   }
 }
 
 void ImageWriterUtilityClient::OnWriteImageProgress(int64 progress) {
   if (!progress_callback_.is_null()) {
     message_loop_proxy_->PostTask(FROM_HERE,
                                   base::Bind(progress_callback_, progress));
   }
 }