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

content/renderer/media/android/media_player_renderer_client.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 CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 37 matching lines @@
   void Initialize(media::DemuxerStreamProvider* demuxer_stream_provider,
                   media::RendererClient* client,
                   const media::PipelineStatusCB& init_cb) override;
   void SetCdm(media::CdmContext* cdm_context,
               const media::CdmAttachedCB& cdm_attached_cb) override;
   void Flush(const base::Closure& flush_cb) override;
   void StartPlayingFrom(base::TimeDelta time) override;
   void SetPlaybackRate(double playback_rate) override;
   void SetVolume(float volume) override;
   base::TimeDelta GetMediaTime() override;
-  bool HasAudio() override;
-  bool HasVideo() override;
 
   // media::RendererClient implementation.
   void OnError(media::PipelineStatus status) override;
   void OnEnded() override;
   void OnStatisticsUpdate(const media::PipelineStatistics& stats) override;
   void OnBufferingStateChange(media::BufferingState state) override;
   void OnWaitingForDecryptionKey() override;
   void OnVideoNaturalSizeChange(const gfx::Size& size) override;
   void OnVideoOpacityChange(bool opaque) override;
   void OnDurationChange(base::TimeDelta duration) override;
@@ skipping 30 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaPlayerRendererClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPlayerRendererClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_