Replace scoped_ptr with std::unique_ptr in //media.

media/cdm/ppapi/external_clear_key/cdm_video_decoder.h

 // Copyright 2013 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_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CDM_VIDEO_DECODER_H_
 #define MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CDM_VIDEO_DECODER_H_
 
 #include <stdint.h>
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "media/cdm/api/content_decryption_module.h"
 #include "media/cdm/ppapi/external_clear_key/clear_key_cdm_common.h"
 
 namespace media {
 
 class CdmVideoDecoder {
  public:
   virtual ~CdmVideoDecoder() {}
   virtual bool Initialize(const cdm::VideoDecoderConfig& config) = 0;
   virtual void Deinitialize() = 0;
   virtual void Reset() = 0;
   virtual bool is_initialized() const = 0;
 
   // Decodes |compressed_frame|. Stores output frame in |decoded_frame| and
   // returns |cdm::kSuccess| when an output frame is available. Returns
   // |cdm::kNeedMoreData| when |compressed_frame| does not produce an output
   // frame. Returns |cdm::kDecodeError| when decoding fails.
   //
   // A null |compressed_frame| will attempt to flush the decoder of any
   // remaining frames. |compressed_frame_size| and |timestamp| are ignored.
   virtual cdm::Status DecodeFrame(const uint8_t* compressed_frame,
                                   int32_t compressed_frame_size,
                                   int64_t timestamp,
                                   cdm::VideoFrame* decoded_frame) = 0;
 };
 
 // Initializes appropriate video decoder based on GYP flags and the value of
 // |config.codec|. Returns a scoped_ptr containing a non-null initialized
 // CdmVideoDecoder* upon success.
-scoped_ptr<CdmVideoDecoder> CreateVideoDecoder(
-    ClearKeyCdmHost* host, const cdm::VideoDecoderConfig& config);
+std::unique_ptr<CdmVideoDecoder> CreateVideoDecoder(
+    ClearKeyCdmHost* host,
+    const cdm::VideoDecoderConfig& config);
 
 }  // namespace media
 
 #endif  // MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CDM_VIDEO_DECODER_H_