Convert //media/audio from scoped_ptr to std::unique_ptr

media/audio/audio_input_writer.h

 // Copyright 2015 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 MEDIA_AUDIO_AUDIO_INPUT_WRITER_H_
 #define MEDIA_AUDIO_AUDIO_INPUT_WRITER_H_
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
 
 namespace media {
 
 class AudioBus;
 
 // A writer interface used by AudioInputController for writing audio data to
 // file for debugging purposes.
 class AudioInputWriter {
  public:
   virtual ~AudioInputWriter() {}
 
   // Write |data| to file.
-  virtual void Write(scoped_ptr<AudioBus> data) = 0;
+  virtual void Write(std::unique_ptr<AudioBus> data) = 0;
 };
 
 }  // namspace media
 
 #endif  // MEDIA_AUDIO_AUDIO_INPUT_WRITER_H_