Cleanup of webrtc::VideoRenderer

webrtc/video_renderer.h

 /*
  *  Copyright (c) 2013 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_VIDEO_RENDERER_H_
 #define WEBRTC_VIDEO_RENDERER_H_
 
+#include "webrtc/media/base/videosinkinterface.h"
+
 namespace webrtc {
 
 class VideoFrame;
 
-class VideoRenderer {
+class VideoRenderer : public rtc::VideoSinkInterface<VideoFrame> {
  public:
-  // This function should return as soon as possible and not block until it's
-  // time to render the frame.
-  // TODO(mflodman) Remove time_to_render_ms when VideoFrame contains NTP.
-  virtual void RenderFrame(const VideoFrame& video_frame,
-                           int time_to_render_ms) = 0;
-
-  virtual bool IsTextureSupported() const = 0;
-
   // This function returns true if WebRTC should not delay frames for
   // smoothness. In general, this case means the renderer can schedule frames to
   // optimize smoothness.
   virtual bool SmoothsRenderedFrames() const { return false; }
 
  protected:
   virtual ~VideoRenderer() {}
 };
 }  // namespace webrtc
 
 #endif  // WEBRTC_VIDEO_RENDERER_H_