Move VideoDecoder out of media pipeline.

media/filters/video_renderer_base.h

Index: media/filters/video_renderer_base.h
diff --git a/media/filters/video_renderer_base.h b/media/filters/video_renderer_base.h
index 867e178a59095aeb3425742ac4390d3f1db728bf..05dd1b4ef325f779d21a20a70ab314a3fde32939 100644
--- a/media/filters/video_renderer_base.h
+++ b/media/filters/video_renderer_base.h
@@ -52,10 +52,11 @@ class MEDIA_EXPORT VideoRendererBase
   virtual void Seek(base::TimeDelta time, const FilterStatusCB& cb) OVERRIDE;
 
   // VideoRenderer implementation.
-  virtual void Initialize(VideoDecoder* decoder,
+  virtual void Initialize(const scoped_refptr<VideoDecoder>& decoder,
                           const PipelineStatusCB& pipeline_status_cb,
                           const StatisticsCB& statistics_cb,
                           const VideoTimeCB& video_time_cb) OVERRIDE;
+
   virtual bool HasEnded() OVERRIDE;
 
   // PlatformThread::Delegate implementation.