Introduce AudioRendererSink::IsOptimizedForHardwareParameters

media/audio/null_audio_sink.cc

Index: media/audio/null_audio_sink.cc
diff --git a/media/audio/null_audio_sink.cc b/media/audio/null_audio_sink.cc
index 78dfbc90d9913888b3f7541eb0d8fcfed5a0414f..151f387e08bc17e4aaa9f4c89722cf9cdd0ec717 100644
--- a/media/audio/null_audio_sink.cc
+++ b/media/audio/null_audio_sink.cc
@@ -79,6 +79,10 @@ OutputDeviceInfo NullAudioSink::GetOutputDeviceInfo() {
   return OutputDeviceInfo(OUTPUT_DEVICE_STATUS_OK);
 }
 
+bool NullAudioSink::IsOptimizedForHardwareParameters() {
+  return false;
+}
+
 bool NullAudioSink::CurrentThreadIsRenderingThread() {
   return task_runner_->BelongsToCurrentThread();
 }