Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/drive/fileapi/webkit_file_stream_writer_impl.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_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_WRITER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_WRITER_IMPL_H_
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/callback.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "storage/browser/fileapi/file_stream_writer.h"
 
 namespace base {
 class TaskRunner;
 }  // namespace base
 
 namespace net {
 class IOBuffer;
 }  // namespace net
@@ skipping 37 matching lines @@
       int buf_len,
       base::File::Error open_result,
       const base::FilePath& local_path,
       const base::Closure& close_callback_on_ui_thread);
 
   FileSystemGetter file_system_getter_;
   scoped_refptr<base::TaskRunner> file_task_runner_;
   const base::FilePath file_path_;
   const int64_t offset_;
 
-  scoped_ptr<storage::FileStreamWriter> local_file_writer_;
+  std::unique_ptr<storage::FileStreamWriter> local_file_writer_;
   base::Closure close_callback_on_ui_thread_;
   net::CompletionCallback pending_write_callback_;
   net::CompletionCallback pending_cancel_callback_;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate the weak pointers before any other members are destroyed.
   base::WeakPtrFactory<WebkitFileStreamWriterImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebkitFileStreamWriterImpl);
 };
 
 }  // namespace internal
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_WRITER_IMPL_H_