Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/media/cma/ipc_streamer/decoder_buffer_base_marshaller.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 CHROMECAST_MEDIA_CMA_IPC_STREAMER_DECODER_BUFFER_BASE_MARSHALLER_H_
 #define CHROMECAST_MEDIA_CMA_IPC_STREAMER_DECODER_BUFFER_BASE_MARSHALLER_H_
 
+#include <memory>
+
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 
 namespace chromecast {
 namespace media {
 class DecoderBufferBase;
 class MediaMessage;
 
 class DecoderBufferBaseMarshaller {
  public:
   // Writes the serialized structure of |config| into |msg|.
   static void Write(
       const scoped_refptr<DecoderBufferBase>& buffer, MediaMessage* msg);
 
   // Returns a decoder buffer from its serialized structure.
-  static scoped_refptr<DecoderBufferBase> Read(scoped_ptr<MediaMessage> msg);
+  static scoped_refptr<DecoderBufferBase> Read(
+      std::unique_ptr<MediaMessage> msg);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_IPC_STREAMER_DECODER_BUFFER_BASE_MARSHALLER_H_