Implemented way to share video frames between WebKit and Chromium

webkit/glue/webmediaplayer_impl.h

 // Copyright (c) 2010 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.
 
 // Delegate calls from WebCore::MediaPlayerPrivate to Chrome's video player.
 // It contains PipelineImpl which is the actual media player pipeline, it glues
 // the media player pipeline, data source, audio renderer and renderer.
 // PipelineImpl would creates multiple threads and access some public methods
 // of this class, so we need to be extra careful about concurrent access of
 // methods and members.
@@ skipping 85 matching lines @@
           WebMediaPlayerImpl* webmediaplayer);
 
     // Public methods called from the video renderer.
     void Repaint();
     void SetVideoRenderer(WebVideoRenderer* video_renderer);
 
     // Public methods called from WebMediaPlayerImpl.
     void Paint(skia::PlatformCanvas* canvas, const gfx::Rect& dest_rect);
     void SetSize(const gfx::Rect& rect);
     void Detach();
+    void GetCurrentFrame(scoped_refptr<media::VideoFrame>* frame_out);
+    void PutCurrentFrame(scoped_refptr<media::VideoFrame> frame);
 
     // Public methods called from the pipeline via callback issued by
     // WebMediaPlayerImpl.
     void PipelineInitializationCallback();
     void PipelineSeekCallback();
     void PipelineEndedCallback();
     void PipelineErrorCallback();
     void NetworkEventCallback();
 
     // Returns the message loop used by the proxy.
@@ skipping 106 matching lines @@
   }
   virtual WebKit::WebMediaPlayer::ReadyState readyState() const {
     return ready_state_;
   }
 
   virtual unsigned long long bytesLoaded() const;
   virtual unsigned long long totalBytes() const;
 
   virtual bool hasSingleSecurityOrigin() const;
   virtual WebKit::WebMediaPlayer::MovieLoadType movieLoadType() const;
+  virtual void getCurrentFrame(WebKit::WebVideoFrame** output);
+  virtual void putCurrentFrame(WebKit::WebVideoFrame* frame);
 
   // As we are closing the tab or even the browser, |main_loop_| is destroyed
   // even before this object gets destructed, so we need to know when
   // |main_loop_| is being destroyed and we can stop posting repaint task
   // to it.
   virtual void WillDestroyCurrentMessageLoop();
 
   void Repaint();
 
   void OnPipelineInitialize();
@@ skipping 89 matching lines @@
       WebMediaPlayerImpl::Proxy* proxy) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebVideoRendererFactoryFactory);
 };
 
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_WEBMEDIAPLAYER_IMPL_H_