unique_ptr_migration: clean up references to scoped_ptr as of r389721

chrome/gpu/arc_gpu_video_decode_accelerator.h

 // Copyright 2016 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 CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_
 #define CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <list>
+#include <memory>
 #include <queue>
 #include <vector>
 
 #include "base/callback.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "chrome/gpu/arc_video_accelerator.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "media/video/video_decode_accelerator.h"
 
 namespace chromeos {
 namespace arc {
 
 // This class is executed in the GPU process. It takes decoding requests from
 // ARC via IPC channels and translates and sends those requests to an
@@ skipping 77 matching lines @@
                          int64_t timestamp);
 
   // Finds the InputRecord which matches to given |bitstream_buffer_id|.
   // Returns |nullptr| if it cannot be found.
   InputRecord* FindInputRecord(int32_t bitstream_buffer_id);
 
   // When true, an EOS output buffer need to be sent to |arc_client_| once an
   // output buffer is available.
   bool pending_eos_output_buffer_;
 
-  scoped_ptr<media::VideoDecodeAccelerator> vda_;
+  std::unique_ptr<media::VideoDecodeAccelerator> vda_;
 
   // It's safe to use the pointer here, the life cycle of the |arc_client_|
   // is longer than this ArcGpuVideoDecodeAccelerator.
   ArcVideoAccelerator::Client* arc_client_;
 
   // The next ID for the bitstream buffer, started from 0.
   int32_t next_bitstream_buffer_id_;
 
   gfx::Size coded_size_;
 
@@ skipping 21 matching lines @@
 
   gpu::GpuPreferences gpu_preferences_;
 
   DISALLOW_COPY_AND_ASSIGN(ArcGpuVideoDecodeAccelerator);
 };
 
 }  // namespace arc
 }  // namespace chromeos
 
 #endif  // CHROME_GPU_ARC_GPU_VIDEO_DECODE_ACCELERATOR_H_