Reland Connect TurnPort and TCPPort to AsyncPacketSocket::SignalSentPacket.

webrtc/p2p/base/turnport.cc

Index: webrtc/p2p/base/turnport.cc
diff --git a/webrtc/p2p/base/turnport.cc b/webrtc/p2p/base/turnport.cc
index 022207aa5b82f157ea15ca919e7d8c75b9f8c7b9..5ed93dd1d84a05b445aeaeeeed47b3ab26172c3d 100644
--- a/webrtc/p2p/base/turnport.cc
+++ b/webrtc/p2p/base/turnport.cc
@@ -351,6 +351,8 @@ bool TurnPort::CreateTurnClientSocket() {
 
   socket_->SignalReadyToSend.connect(this, &TurnPort::OnReadyToSend);
 
+  socket_->SignalSentPacket.connect(this, &TurnPort::OnSentPacket);
+
   // TCP port is ready to send stun requests after the socket is connected,
   // while UDP port is ready to do so once the socket is created.
   if (server_address_.proto == PROTO_TCP) {
@@ -582,6 +584,11 @@ void TurnPort::OnReadPacket(
   }
 }
 
+void TurnPort::OnSentPacket(rtc::AsyncPacketSocket* socket,
+                            const rtc::SentPacket& sent_packet) {
+  PortInterface::SignalSentPacket(sent_packet);
+}
+
 void TurnPort::OnReadyToSend(rtc::AsyncPacketSocket* socket) {
   if (ready()) {
     Port::OnReadyToSend();