diff --git a/quic/test_tools/quic_packet_generator_peer.cc b/quic/test_tools/quic_packet_generator_peer.cc
new file mode 100644
index 0000000..91a8752
--- /dev/null
+++ b/quic/test_tools/quic_packet_generator_peer.cc
@@ -0,0 +1,20 @@
+// Copyright 2014 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/third_party/quiche/src/quic/test_tools/quic_packet_generator_peer.h"
+
+#include "net/third_party/quiche/src/quic/core/quic_packet_creator.h"
+#include "net/third_party/quiche/src/quic/core/quic_packet_generator.h"
+
+namespace quic {
+namespace test {
+
+// static
+QuicPacketCreator* QuicPacketGeneratorPeer::GetPacketCreator(
+    QuicPacketGenerator* generator) {
+  return &generator->packet_creator_;
+}
+
+}  // namespace test
+}  // namespace quic