Add sender controlled playout delay limits

webrtc/voice_engine/channel_proxy.cc

Index: webrtc/voice_engine/channel_proxy.cc
diff --git a/webrtc/voice_engine/channel_proxy.cc b/webrtc/voice_engine/channel_proxy.cc
index 4cc7f5cbbcdc61cd3f0c68481006ebb88703b4c4..674cfbb6b7513befe04f2e9c94fcfb3428882198 100644
--- a/webrtc/voice_engine/channel_proxy.cc
+++ b/webrtc/voice_engine/channel_proxy.cc
@@ -79,6 +79,16 @@ void ChannelProxy::EnableReceiveTransportSequenceNumber(int id) {
   channel()->EnableReceiveTransportSequenceNumber(id);
 }
 
+void ChannelProxy::EnableSendPlayoutDelayLimit(int id) {
+  RTC_DCHECK(thread_checker_.CalledOnValidThread());
+  channel()->EnableSendPlayoutDelayLimit(id);
+}
+
+void ChannelProxy::EnableReceivePlayoutDelayLimit(int id) {
+  RTC_DCHECK(thread_checker_.CalledOnValidThread());
+  channel()->EnableReceivePlayoutDelayLimit(id);
+}
+
 void ChannelProxy::RegisterSenderCongestionControlObjects(
     RtpPacketSender* rtp_packet_sender,
     TransportFeedbackObserver* transport_feedback_observer,