Move RtcEventLog object from inside VoiceEngine to Call.

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 2c58def560657ee6d64b66cb36b06df55d874aac..bf78e7268e888f151bd223c397e7d42447121829 100644
--- a/webrtc/audio/audio_receive_stream.cc
+++ b/webrtc/audio/audio_receive_stream.cc
@@ -238,6 +238,10 @@ const webrtc::AudioReceiveStream::Config& AudioReceiveStream::config() const {
   return config_;
 }
 
+void AudioReceiveStream::SetRtcEventLog(webrtc::RtcEventLog* event_log) {
+  channel_proxy_->SetRtcEventLog(event_log);
+}
+
 VoiceEngine* AudioReceiveStream::voice_engine() const {
   internal::AudioState* audio_state =
       static_cast<internal::AudioState*>(audio_state_.get());