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

media/renderers/renderer_impl.cc

 // 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.
 
 #include "media/renderers/renderer_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 292 matching lines @@
   if (audio_renderer_)
     audio_renderer_->SetVolume(volume);
 }
 
 base::TimeDelta RendererImpl::GetMediaTime() {
   // No BelongsToCurrentThread() checking because this can be called from other
   // threads.
   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());
   DCHECK_EQ(state_, STATE_UNINITIALIZED);
 
   underflow_disabled_for_testing_ = true;
 }
 
 void RendererImpl::EnableClocklessVideoPlaybackForTesting() {
   DVLOG(1) << __func__;
@@ skipping 516 matching lines @@
   DCHECK(task_runner_->BelongsToCurrentThread());
   client_->OnVideoNaturalSizeChange(size);
 }
 
 void RendererImpl::OnVideoOpacityChange(bool opaque) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   client_->OnVideoOpacityChange(opaque);
 }
 
 }  // namespace media