Connect TurnPort and TCPPort to AsyncPacketSocket::SignalSentPacket.

webrtc/p2p/base/relayport.h

Index: webrtc/p2p/base/relayport.h
diff --git a/webrtc/p2p/base/relayport.h b/webrtc/p2p/base/relayport.h
index 4b74b91ade67ac62a74e4bc1c6e8ef715fe0db1a..a6ac3e2f53668f4443357c1ee32f17b97bc671b6 100644
--- a/webrtc/p2p/base/relayport.h
+++ b/webrtc/p2p/base/relayport.h
@@ -96,6 +96,9 @@ class RelayPort : public Port {
                     ProtocolType proto,
                     const rtc::PacketTime& packet_time);
 
+  void OnSentPacket(rtc::AsyncPacketSocket* socket,
+                    const rtc::SentPacket& sent_packet) override {}

[pthatcher1, 2016/01/13 19:42:36]

You said it must call PortInterface::OnSentPacket, but then it doesn't.  I know
we don't care much about RelayPort, but at least you could put a comment about
this.

[stefan-webrtc, 2016/01/14 10:14:38]

Done. To be honest, I'm not entirely sure how or if RelayPort is being used
today. I'm happy to do a follow-up if you have suggestions for improvements.

+
  private:
   friend class RelayEntry;