Introduce AudioRendererSink::IsOptimizedForHardwareParameters

media/base/audio_renderer_sink.h

Index: media/base/audio_renderer_sink.h
diff --git a/media/base/audio_renderer_sink.h b/media/base/audio_renderer_sink.h
index 4052112bab555b6703c90962422323f5cbeff0e4..e806d29a2e39a2f1fb4634c4e8055ee6fa9356ee 100644
--- a/media/base/audio_renderer_sink.h
+++ b/media/base/audio_renderer_sink.h
@@ -73,6 +73,9 @@ class AudioRendererSink
   // Must never be called on the IO thread.
   virtual OutputDeviceInfo GetOutputDeviceInfo() = 0;
 
+  // Returns |true| if a source with hardware parameters is preferable.
+  virtual bool IsOptimizedForHardwareParameters() = 0;
+
   // If DCHECKs are enabled, this function returns true if called on rendering
   // thread, otherwise false. With DCHECKs disabled, it returns true. Thus, it
   // is intended to be used for DCHECKing.