Update from https://crrev.com/302630

net/quic/test_tools/quic_connection_peer.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/test_tools/quic_connection_peer.h"
 
 #include "base/stl_util.h"
 #include "net/quic/congestion_control/receive_algorithm_interface.h"
 #include "net/quic/congestion_control/send_algorithm_interface.h"
 #include "net/quic/quic_connection.h"
@@ skipping 230 matching lines @@
                                               QuicVersionVector versions) {
   connection->framer_.SetSupportedVersions(versions);
 }
 
 // static
 QuicPacketHeader* QuicConnectionPeer::GetLastHeader(
     QuicConnection* connection) {
   return &connection->last_header_;
 }
 
+// static
+void QuicConnectionPeer::SetSequenceNumberOfLastSentPacket(
+    QuicConnection* connection, QuicPacketSequenceNumber number) {
+  connection->sequence_number_of_last_sent_packet_ = number;
+}
+
 }  // namespace test
 }  // namespace net