Add "repaint" option to PaintSingleFrame

media/base/video_renderer_sink.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 MEDIA_BASE_VIDEO_RENDERER_SINK_H_
 #define MEDIA_BASE_VIDEO_RENDERER_SINK_H_
 
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
@@ skipping 40 matching lines @@
   // will be issued after this method returns.  May be used as a means of power
   // conservation by the sink implementation, so clients should call this
   // liberally if no new frames are expected.
   virtual void Stop() = 0;
 
   // Instead of using a callback driven rendering path, allow clients to paint a
   // single frame as they see fit without regard for the compositor; this is
   // useful for painting poster images or hole frames without having to issue a
   // Start() -> Render() -> Stop(). Clients are free to mix usage of Render()
   // based painting and PaintSingleFrame().
-  virtual void PaintSingleFrame(const scoped_refptr<VideoFrame>& frame) = 0;
+  virtual void PaintSingleFrame(const scoped_refptr<VideoFrame>& frame,
+                                bool repaint_duplicate_frame = false) = 0;
 
   virtual ~VideoRendererSink() {}
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_VIDEO_RENDERER_SINK_H_