Keep an instance of QuicAckFrame in QuicConnection in order to reduce

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 20 matching lines @@
 }
 
 // static
 void QuicConnectionPeer::SetSendAlgorithm(
     QuicConnection* connection,
     SendAlgorithmInterface* send_algorithm) {
   connection->sent_packet_manager_.send_algorithm_.reset(send_algorithm);
 }
 
 // static
-QuicAckFrame* QuicConnectionPeer::CreateAckFrame(QuicConnection* connection) {
-  return connection->CreateAckFrame();
+void QuicConnectionPeer::PopulateAckFrame(QuicConnection* connection,
+                                          QuicAckFrame* ack) {
+  connection->PopulateAckFrame(ack);
 }
 
 // static
-QuicStopWaitingFrame* QuicConnectionPeer::CreateStopWaitingFrame(
-    QuicConnection* connection) {
-  return connection->CreateStopWaitingFrame();
+void QuicConnectionPeer::PopulateStopWaitingFrame(
+    QuicConnection* connection,
+    QuicStopWaitingFrame* stop_waiting) {
+  connection->PopulateStopWaitingFrame(stop_waiting);
 }
 
 // static
 QuicConnectionVisitorInterface* QuicConnectionPeer::GetVisitor(
     QuicConnection* connection) {
   return connection->visitor_;
 }
 
 // static
 QuicPacketCreator* QuicConnectionPeer::GetPacketCreator(
@@ skipping 205 matching lines @@
   connection->sequence_number_of_last_sent_packet_ = number;
 }
 
 // static
 QuicConnectionStats* QuicConnectionPeer::GetStats(QuicConnection* connection) {
   return &connection->stats_;
 }
 
 }  // namespace test
 }  // namespace net