[Mojo Video Capture] Simplify media::VideoCaptureDevice::Client:Buffer to a struct

content/browser/renderer_host/media/video_capture_gpu_jpeg_decoder.h

 // Copyright 2015 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 CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 37 matching lines @@
 
   // Implementation of VideoCaptureJpegDecoder:
   void Initialize() override;
   STATUS GetStatus() const override;
   void DecodeCapturedData(
       const uint8_t* data,
       size_t in_buffer_size,
       const media::VideoCaptureFormat& frame_format,
       base::TimeTicks reference_time,
       base::TimeDelta timestamp,
-      std::unique_ptr<media::VideoCaptureDevice::Client::Buffer> out_buffer)
-      override;
+      media::VideoCaptureDevice::Client::Buffer out_buffer) override;
 
   // JpegDecodeAccelerator::Client implementation.
   // These will be called on IO thread.
   void VideoFrameReady(int32_t buffer_id) override;
   void NotifyError(int32_t buffer_id,
                    media::JpegDecodeAccelerator::Error error) override;
 
  private:
   // Initialization helper, to establish GPU channel.
   static void EstablishGpuChannelOnUIThread(
@@ skipping 39 matching lines @@
   std::unique_ptr<base::SharedMemory> in_shared_memory_;
 
   STATUS decoder_status_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureGpuJpegDecoder);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_