Storing raw audio sink for default audio track.

webrtc/audio/audio_receive_stream.cc

Index: webrtc/audio/audio_receive_stream.cc
diff --git a/webrtc/audio/audio_receive_stream.cc b/webrtc/audio/audio_receive_stream.cc
index dfad79f9d76420460267f2fdd0e1265a928b8786..7fe65ffbd7bc63a248b766d8172b0361fc9e5af3 100644
--- a/webrtc/audio/audio_receive_stream.cc
+++ b/webrtc/audio/audio_receive_stream.cc
@@ -203,9 +203,9 @@ webrtc::AudioReceiveStream::Stats AudioReceiveStream::GetStats() const {
   return stats;
 }
 
-void AudioReceiveStream::SetSink(rtc::scoped_ptr<AudioSinkInterface> sink) {
+void AudioReceiveStream::SetSink(rtc::scoped_refptr<AudioSinkInterface> sink) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
-  channel_proxy_->SetSink(std::move(sink));
+  channel_proxy_->SetSink(sink);
 }
 
 const webrtc::AudioReceiveStream::Config& AudioReceiveStream::config() const {