Update from https://crrev.com/308996

net/quic/test_tools/quic_connection_peer.cc

Index: net/quic/test_tools/quic_connection_peer.cc
diff --git a/net/quic/test_tools/quic_connection_peer.cc b/net/quic/test_tools/quic_connection_peer.cc
index f986d2e751fae3071d9ceb5c5698954b91cae635..ad44f413b07275c381e795c6e5360bafb9a9c780 100644
--- a/net/quic/test_tools/quic_connection_peer.cc
+++ b/net/quic/test_tools/quic_connection_peer.cc
@@ -259,5 +259,10 @@ void QuicConnectionPeer::SetSequenceNumberOfLastSentPacket(
   connection->sequence_number_of_last_sent_packet_ = number;
 }
 
+// static
+QuicConnectionStats* QuicConnectionPeer::GetStats(QuicConnection* connection) {
+  return &connection->stats_;
+}
+
 }  // namespace test
 }  // namespace net