Replace scoped_ptr with unique_ptr in webrtc/modules/video_coding/

webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h

 /*
  *  Copyright (c) 2015 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_CODECS_H264_H264_ENCODER_IMPL_H_
 #define WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_H264_ENCODER_IMPL_H_
 
 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
 
+#include <memory>
 #include <vector>
 
-#include "webrtc/base/scoped_ptr.h"
 
 class ISVCEncoder;
 
 namespace webrtc {
 
 class H264EncoderImpl : public H264Encoder {
  public:
   H264EncoderImpl();
   ~H264EncoderImpl() override;
 
@@ skipping 24 matching lines @@
   int32_t SetPeriodicKeyFrames(bool enable) override;
   void OnDroppedFrame() override;
 
  private:
   bool IsInitialized() const;
 
   ISVCEncoder* openh264_encoder_;
   VideoCodec codec_settings_;
 
   EncodedImage encoded_image_;
-  rtc::scoped_ptr<uint8_t[]> encoded_image_buffer_;
+  std::unique_ptr<uint8_t[]> encoded_image_buffer_;
   EncodedImageCallback* encoded_image_callback_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_H264_ENCODER_IMPL_H_