Convert //chrome from scoped_ptr to std::unique_ptr

chrome/utility/image_writer/image_writer_handler.h

 // 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.
 
 #ifndef CHROME_UTILITY_IMAGE_WRITER_IMAGE_WRITER_HANDLER_H_
 #define CHROME_UTILITY_IMAGE_WRITER_IMAGE_WRITER_HANDLER_H_
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
 #include "chrome/utility/image_writer/image_writer.h"
 #include "chrome/utility/utility_message_handler.h"
 #include "ipc/ipc_message.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace image_writer {
 
@@ skipping 15 matching lines @@
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // Small wrapper for sending on the UtilityProcess.
   void Send(IPC::Message* msg);
 
   // Message handlers.
   void OnWriteStart(const base::FilePath& image, const base::FilePath& device);
   void OnVerifyStart(const base::FilePath& image, const base::FilePath& device);
   void OnCancel();
 
-  scoped_ptr<ImageWriter> image_writer_;
+  std::unique_ptr<ImageWriter> image_writer_;
 };
 
 }  // namespace image_writer
 
 #endif  // CHROME_UTILITY_IMAGE_WRITER_IMAGE_WRITER_HANDLER_H_