Notfiy NQE of QUIC RTT

net/quic/quic_connection.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_connection.h"
 
 #include <string.h>
 #include <sys/types.h>
 
 #include <algorithm>
@@ skipping 1679 matching lines @@
   visitor_->OnCongestionWindowChange(clock_->ApproximateNow());
 }
 
 void QuicConnection::OnRttChange() {
   // Uses the connection's smoothed RTT. If zero, uses initial_rtt.
   QuicTime::Delta rtt = sent_packet_manager_.GetRttStats()->smoothed_rtt();
   if (rtt.IsZero()) {
     rtt = QuicTime::Delta::FromMicroseconds(
         sent_packet_manager_.GetRttStats()->initial_rtt_us());
   }
+  if (debug_visitor_)
+    debug_visitor_->OnRttChanged(rtt);
   packet_generator_.OnRttChange(rtt);
 }
 
 void QuicConnection::OnHandshakeComplete() {
   sent_packet_manager_.SetHandshakeConfirmed();
   // The client should immediately ack the SHLO to confirm the handshake is
   // complete with the server.
   if (perspective_ == Perspective::IS_CLIENT && !ack_queued_) {
     ack_alarm_->Cancel();
     ack_alarm_->Set(clock_->ApproximateNow());
@@ skipping 606 matching lines @@
       packet_number_of_last_sent_packet_ + packets_between_mtu_probes_ + 1;
   ++mtu_probe_count_;
 
   DVLOG(2) << "Sending a path MTU discovery packet #" << mtu_probe_count_;
   SendMtuDiscoveryPacket(mtu_discovery_target_);
 
   DCHECK(!mtu_discovery_alarm_->IsSet());
 }
 
 }  // namespace net