MediaResource refactoring to support multiple streams

media/remoting/courier_renderer.h

Index: media/remoting/courier_renderer.h
diff --git a/media/remoting/courier_renderer.h b/media/remoting/courier_renderer.h
index 87b462a9ea4f4a0e2824554636582cdb911d9450..6d81ce435e2f52c7bd0561ea288c4312a0c4c7e6 100644
--- a/media/remoting/courier_renderer.h
+++ b/media/remoting/courier_renderer.h
@@ -83,7 +83,7 @@ class CourierRenderer : public Renderer {
 
  public:
   // media::Renderer implementation.
-  void Initialize(DemuxerStreamProvider* demuxer_stream_provider,
+  void Initialize(MediaResource* media_resource,
                   RendererClient* client,
                   const PipelineStatusCB& init_cb) final;
   void SetCdm(CdmContext* cdm_context,
@@ -169,7 +169,7 @@ class CourierRenderer : public Renderer {
   // lock because it can be accessed from both media and render main thread.
   base::Lock time_lock_;
 
-  DemuxerStreamProvider* demuxer_stream_provider_;
+  MediaResource* media_resource_;
   RendererClient* client_;
   std::unique_ptr<DemuxerStreamAdapter> audio_demuxer_stream_adapter_;
   std::unique_ptr<DemuxerStreamAdapter> video_demuxer_stream_adapter_;