Change audio render thread checking to use new AudioRendererSink::BelongsToRendererThread()

media/base/fake_audio_renderer_sink.cc

Index: media/base/fake_audio_renderer_sink.cc
diff --git a/media/base/fake_audio_renderer_sink.cc b/media/base/fake_audio_renderer_sink.cc
index 6cc0201d7850700667f95bef35c231b3c89cac4c..265d65c3db92fc387ea101a17302dfc6fcc6a76f 100644
--- a/media/base/fake_audio_renderer_sink.cc
+++ b/media/base/fake_audio_renderer_sink.cc
@@ -69,6 +69,11 @@ OutputDeviceInfo FakeAudioRendererSink::GetOutputDeviceInfo() {
   return output_device_info_;
 }
 
+bool FakeAudioRendererSink::BelongsToRenderingThread() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
 bool FakeAudioRendererSink::Render(AudioBus* dest,
                                    uint32_t frames_delayed,
                                    int* frames_written) {