Support Opus Ambisonics playback

media/base/fake_audio_renderer_sink.h

Index: media/base/fake_audio_renderer_sink.h
diff --git a/media/base/fake_audio_renderer_sink.h b/media/base/fake_audio_renderer_sink.h
index 578a65ab4532af980961f1f1ea4e94985516751a..7e87a960ee211157558220fd18237ad0a13609a9 100644
--- a/media/base/fake_audio_renderer_sink.h
+++ b/media/base/fake_audio_renderer_sink.h
@@ -52,6 +52,9 @@ class FakeAudioRendererSink : public AudioRendererSink {
   bool Render(AudioBus* dest, base::TimeDelta delay, int* frames_written);
   void OnRenderError();
 
+  // Enables different tests to have different settings.
+  void SetIsOptimizedForHardwareParameters(bool value);
+
   State state() const { return state_; }
 
  protected:
@@ -63,6 +66,7 @@ class FakeAudioRendererSink : public AudioRendererSink {
   State state_;
   RenderCallback* callback_;
   OutputDeviceInfo output_device_info_;
+  bool is_optimized_for_hw_params_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeAudioRendererSink);
 };