Fix include guards for QUIC files.

net/quic/chromium/quic_chromium_client_session_peer.h

Index: net/quic/chromium/quic_chromium_client_session_peer.h
diff --git a/net/quic/chromium/quic_chromium_client_session_peer.h b/net/quic/chromium/quic_chromium_client_session_peer.h
index 03af673f2086d4c71414c5fb979b3941a375e0eb..39dbb8a54b17c277e5faeda06acb970a04f23c40 100644
--- a/net/quic/chromium/quic_chromium_client_session_peer.h
+++ b/net/quic/chromium/quic_chromium_client_session_peer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef NET_QUIC_TEST_TOOLS_QUIC_CHROMIUM_CLIENT_SESSION_PEER_H_
-#define NET_QUIC_TEST_TOOLS_QUIC_CHROMIUM_CLIENT_SESSION_PEER_H_
+#ifndef NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_SESSION_PEER_H_
+#define NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_SESSION_PEER_H_
 
 #include <stddef.h>
 
@@ -42,4 +42,4 @@ class QuicChromiumClientSessionPeer {
 }  // namespace test
 }  // namespace net
 
-#endif  // NET_QUIC_TEST_TOOLS_QUIC_CHROMIUM_CLIENT_SESSION_PEER_H_
+#endif  // NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_SESSION_PEER_H_