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

media/renderers/renderer_impl.cc

Index: media/renderers/renderer_impl.cc
diff --git a/media/renderers/renderer_impl.cc b/media/renderers/renderer_impl.cc
index 4b2ed9682e8cc5002b59d49c9b68fbb76cb0c932..87212d8214423f6ed38b7cd4344feca1ae16476e 100644
--- a/media/renderers/renderer_impl.cc
+++ b/media/renderers/renderer_impl.cc
@@ -310,16 +310,6 @@ base::TimeDelta RendererImpl::GetMediaTime() {
   return time_source_->CurrentMediaTime();
 }
 
-bool RendererImpl::HasAudio() {
-  DCHECK(task_runner_->BelongsToCurrentThread());
-  return audio_renderer_ != NULL;
-}
-
-bool RendererImpl::HasVideo() {
-  DCHECK(task_runner_->BelongsToCurrentThread());
-  return video_renderer_ != NULL;
-}
-
 void RendererImpl::DisableUnderflowForTesting() {
   DVLOG(1) << __func__;
   DCHECK(task_runner_->BelongsToCurrentThread());