Motown: Define MediaRenderer and make it the way we identify renderers.

services/media/factory_service/factory_service.h

 // Copyright 2016 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 MOJO_SERVICES_MEDIA_FACTORY_FACTORY_SERVICE_H_
 #define MOJO_SERVICES_MEDIA_FACTORY_FACTORY_SERVICE_H_
 
 #include "mojo/common/binding_set.h"
 #include "mojo/services/media/control/interfaces/media_factory.mojom.h"
 #include "services/util/cpp/factory_service_base.h"
 
 namespace mojo {
 namespace media {
 
 class MediaFactoryService : public util::FactoryServiceBase,
                             public MediaFactory {
  public:
   MediaFactoryService();
 
   ~MediaFactoryService() override;
 
   // ApplicationImplBase override.
   bool OnAcceptConnection(ServiceProviderImpl* service_provider_impl) override;
 
   // MediaFactory implementation.
   void CreatePlayer(InterfaceHandle<SeekingReader> reader,
+                    InterfaceHandle<MediaRenderer> audio_renderer,
+                    InterfaceHandle<MediaRenderer> video_renderer,
                     InterfaceRequest<MediaPlayer> player) override;
 
   void CreateSource(InterfaceHandle<SeekingReader> reader,
                     Array<MediaTypeSetPtr> allowed_media_types,
                     InterfaceRequest<MediaSource> source) override;
 
-  void CreateSink(const String& destination_url,
+  void CreateSink(InterfaceHandle<MediaRenderer> renderer,
                   MediaTypePtr media_type,
                   InterfaceRequest<MediaSink> sink) override;
 
   void CreateDemux(InterfaceHandle<SeekingReader> reader,
                    InterfaceRequest<MediaDemux> demux) override;
 
   void CreateDecoder(MediaTypePtr input_media_type,
                      InterfaceRequest<MediaTypeConverter> decoder) override;
 
   void CreateNetworkReader(const String& url,
                            InterfaceRequest<SeekingReader> reader) override;
 
   void CreateTimelineController(
       InterfaceRequest<MediaTimelineController> timeline_controller) override;
 
  private:
   BindingSet<MediaFactory> bindings_;
 };
 
 }  // namespace media
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_MEDIA_FACTORY_FACTORY_SERVICE_H_