Remove HasAudio(), HasVideo(), GetInitialNaturalSize() from media::Pipeline.

content/renderer/media/webmediaplayer_impl.h

Index: content/renderer/media/webmediaplayer_impl.h
diff --git a/content/renderer/media/webmediaplayer_impl.h b/content/renderer/media/webmediaplayer_impl.h
index 7f765a82c036193401f1bbcf589d95804527cb24..d12dcffd8c9dff629b6ee18d28d41632ccf88ce5 100644
--- a/content/renderer/media/webmediaplayer_impl.h
+++ b/content/renderer/media/webmediaplayer_impl.h
@@ -174,8 +174,8 @@ class WebMediaPlayerImpl
   void OnPipelineSeek(media::PipelineStatus status);
   void OnPipelineEnded();
   void OnPipelineError(media::PipelineStatus error);
-  void OnPipelineBufferingState(
-      media::Pipeline::BufferingState buffering_state);
+  void OnPipelineMetadata(media::PipelineMetadata metadata);
+  void OnPipelinePrerollCompleted();
   void OnDemuxerOpened();
   void OnKeyAdded(const std::string& session_id);
   void OnKeyError(const std::string& session_id,
@@ -269,6 +269,9 @@ class WebMediaPlayerImpl
   // The LoadType passed in the |load_type| parameter of the load() call.
   LoadType load_type_;
 
+  // Cache of metadata for answering hasAudio(), hasVideo(), and naturalSize().
+  media::PipelineMetadata pipeline_metadata_;
+
   // Playback state.
   //
   // TODO(scherkus): we have these because Pipeline favours the simplicity of a
@@ -331,7 +334,6 @@ class WebMediaPlayerImpl
   // Video rendering members.
   media::VideoFramePainter painter_;
   media::SkCanvasVideoRenderer skcanvas_video_renderer_;
-  gfx::Size natural_size_;
 
   // The compositor layer for displaying the video content when using composited
   // playback.