Make mojo renderer capable of supporting multiple streams/tracks

media/mojo/services/mojo_renderer_service.h

 // Copyright 2014 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.
 
 #ifndef MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_
 #define MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_
 
 #include <stdint.h>
 #include <memory>
 
@@ skipping 45 matching lines @@
       base::WeakPtr<MojoCdmServiceContext> mojo_cdm_service_context,
       scoped_refptr<AudioRendererSink> audio_sink,
       std::unique_ptr<VideoRendererSink> video_sink,
       std::unique_ptr<media::Renderer> renderer,
       InitiateSurfaceRequestCB initiate_surface_request_cb);
 
   ~MojoRendererService() final;
 
   // mojom::Renderer implementation.
   void Initialize(mojom::RendererClientAssociatedPtrInfo client,
-                  mojom::DemuxerStreamPtr audio,
-                  mojom::DemuxerStreamPtr video,
+                  base::Optional<std::vector<mojom::DemuxerStreamPtr>> streams,
                   const base::Optional<GURL>& media_url,
                   const base::Optional<GURL>& first_party_for_cookies,
                   const InitializeCallback& callback) final;
   void Flush(const FlushCallback& callback) final;
   void StartPlayingFrom(base::TimeDelta time_delta) final;
   void SetPlaybackRate(double playback_rate) final;
   void SetVolume(float volume) final;
   void SetCdm(int32_t cdm_id, const SetCdmCallback& callback) final;
   void InitiateScopedSurfaceRequest(
       const InitiateScopedSurfaceRequestCallback& callback) final;
@@ skipping 83 matching lines @@
 
   base::WeakPtr<MojoRendererService> weak_this_;
   base::WeakPtrFactory<MojoRendererService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoRendererService);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_