Fix include guards for QUIC files.

net/quic/core/quic_buffered_packet_store.h

Index: net/quic/core/quic_buffered_packet_store.h
diff --git a/net/quic/core/quic_buffered_packet_store.h b/net/quic/core/quic_buffered_packet_store.h
index ad88253ad71913b67e398868fcfc9994d3244d94..124c301b2ddeaa7b9679e7f5871a75e81ea8401a 100644
--- a/net/quic/core/quic_buffered_packet_store.h
+++ b/net/quic/core/quic_buffered_packet_store.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_QUIC_BUFFERED_PACKET_STORE_H_
-#define NET_QUIC_QUIC_BUFFERED_PACKET_STORE_H_
+#ifndef NET_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_
+#define NET_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_
 
 #include "net/base/linked_hash_map.h"
 #include "net/base/net_export.h"
@@ -158,4 +158,4 @@ class NET_EXPORT_PRIVATE QuicBufferedPacketStore {
 
 }  // namespace net
 
-#endif  // NET_QUIC_QUIC_BUFFERED_PACKET_STORE_H_
+#endif  // NET_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_