media: remove unused functions: Renderer::HasAudio()/HasVideo()

chromecast/media/service/cast_renderer.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 CHROMECAST_MEDIA_SERVICE_CAST_RENDERER_H_
 #define CHROMECAST_MEDIA_SERVICE_CAST_RENDERER_H_
 
 #include "base/memory/weak_ptr.h"
 #include "chromecast/media/base/media_resource_tracker.h"
 #include "chromecast/media/base/video_resolution_policy.h"
@@ skipping 31 matching lines @@
   void Initialize(::media::DemuxerStreamProvider* demuxer_stream_provider,
                   ::media::RendererClient* client,
                   const ::media::PipelineStatusCB& init_cb) final;
   void SetCdm(::media::CdmContext* cdm_context,
               const ::media::CdmAttachedCB& cdm_attached_cb) final;
   void Flush(const base::Closure& flush_cb) final;
   void StartPlayingFrom(base::TimeDelta time) final;
   void SetPlaybackRate(double playback_rate) final;
   void SetVolume(float volume) final;
   base::TimeDelta GetMediaTime() final;
-  bool HasAudio() final;
-  bool HasVideo() final;
 
   // VideoResolutionPolicy::Observer implementation.
   void OnVideoResolutionPolicyChanged() override;
 
  private:
   enum Stream { STREAM_AUDIO, STREAM_VIDEO };
   void OnError(::media::PipelineStatus status);
   void OnEnded(Stream stream);
   void OnStatisticsUpdate(const ::media::PipelineStatistics& stats);
   void OnBufferingStateChange(::media::BufferingState state);
@@ skipping 19 matching lines @@
   gfx::Size video_res_;
 
   base::WeakPtrFactory<CastRenderer> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(CastRenderer);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_SERVICE_CAST_RENDERER_H_