Replace VideoDecoder::media_format() with significantly simpler width()/height() methods.

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 d48c97ccc74106475119f2b974b1b99f5a865494..d4a064c84732479c1e78a197bbcaedadda331868 100644
--- a/media/filters/video_renderer_base.h
+++ b/media/filters/video_renderer_base.h
@@ -36,15 +36,6 @@ class VideoRendererBase
   VideoRendererBase();
   virtual ~VideoRendererBase();
 
-  // Helper method to parse out video-related information from a MediaFormat.
-  // Returns true all the required parameters are existent in |media_format|.
-  // |surface_format_out|, |width_out|, |height_out| can be NULL where the
-  // result is not needed.
-  static bool ParseMediaFormat(
-      const MediaFormat& media_format,
-      VideoFrame::Format* surface_format_out,
-      int* width_out, int* height_out);
-
   // Filter implementation.
   virtual void Play(FilterCallback* callback);
   virtual void Pause(FilterCallback* callback);
@@ -76,7 +67,7 @@ class VideoRendererBase
   // class takes place.
   //
   // Implementors typically use the media format of |decoder| to create their
-  // output surfaces.  Implementors should NOT call InitializationComplete().
+  // output surfaces.
   virtual bool OnInitialize(VideoDecoder* decoder) = 0;
 
   // Subclass interface.  Called after all other stopping actions take place.
@@ -97,12 +88,6 @@ class VideoRendererBase
   // class executes on.
   virtual void OnFrameAvailable() = 0;
 
-  virtual VideoDecoder* GetDecoder();
-
-  int width() { return width_; }
-  int height() { return height_; }
-  VideoFrame::Format surface_format() { return surface_format_; }
-
   void ReadInput(scoped_refptr<VideoFrame> frame);
 
  private:
@@ -141,10 +126,6 @@ class VideoRendererBase
 
   scoped_refptr<VideoDecoder> decoder_;
 
-  int width_;
-  int height_;
-  VideoFrame::Format surface_format_;
-
   // Queue of incoming frames as well as the current frame since the last time
   // OnFrameAvailable() was called.
   typedef std::deque< scoped_refptr<VideoFrame> > VideoFrameQueue;