Replace scoped_ptr with unique_ptr in webrtc/modules/video_coding/

webrtc/modules/video_coding/timestamp_map.h

 /*
  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MODULES_VIDEO_CODING_TIMESTAMP_MAP_H_
 #define WEBRTC_MODULES_VIDEO_CODING_TIMESTAMP_MAP_H_
 
-#include "webrtc/base/scoped_ptr.h"
+#include <memory>
+
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
 
 struct VCMFrameInformation;
 
 class VCMTimestampMap {
  public:
   explicit VCMTimestampMap(size_t capacity);
   ~VCMTimestampMap();
 
   // Empty the map.
   void Reset();
 
   void Add(uint32_t timestamp, VCMFrameInformation* data);
   VCMFrameInformation* Pop(uint32_t timestamp);
 
  private:
   struct TimestampDataTuple {
     uint32_t timestamp;
     VCMFrameInformation* data;
   };
   bool IsEmpty() const;
 
-  rtc::scoped_ptr<TimestampDataTuple[]> ring_buffer_;
+  std::unique_ptr<TimestampDataTuple[]> ring_buffer_;
   const size_t capacity_;
   size_t next_add_idx_;
   size_t next_pop_idx_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_TIMESTAMP_MAP_H_