Tiny refactor of QuicSentPacketManager::NetworkChangeVisitor's

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 1566 matching lines @@
           first_required_forward_secure_packet_) {
     SetDefaultEncryptionLevel(ENCRYPTION_FORWARD_SECURE);
   }
   if (serialized_packet.retransmittable_frames) {
     serialized_packet.retransmittable_frames->
         set_encryption_level(encryption_level_);
   }
   SendOrQueuePacket(QueuedPacket(serialized_packet, encryption_level_));
 }
 
-void QuicConnection::OnCongestionWindowChange(QuicByteCount congestion_window) {
-  packet_generator_.OnCongestionWindowChange(congestion_window);
+void QuicConnection::OnCongestionWindowChange() {
+  packet_generator_.OnCongestionWindowChange(
+      sent_packet_manager_.GetCongestionWindow());
   visitor_->OnCongestionWindowChange(clock_->ApproximateNow());
 }
 
 void QuicConnection::OnHandshakeComplete() {
   sent_packet_manager_.SetHandshakeConfirmed();
 }
 
 void QuicConnection::SendOrQueuePacket(QueuedPacket packet) {
   // The caller of this function is responsible for checking CanWrite().
   if (packet.serialized_packet.packet == nullptr) {
@@ skipping 508 matching lines @@
   }
   for (size_t i = 0; i < retransmittable_frames->frames().size(); ++i) {
     if (retransmittable_frames->frames()[i].type == CONNECTION_CLOSE_FRAME) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace net