Fix include guards for QUIC files.

net/quic/core/crypto/aes_128_gcm_12_encrypter.h

Index: net/quic/core/crypto/aes_128_gcm_12_encrypter.h
diff --git a/net/quic/core/crypto/aes_128_gcm_12_encrypter.h b/net/quic/core/crypto/aes_128_gcm_12_encrypter.h
index 70b86237f5a0db89ddd5fa6c81177922eae0b0dd..3e80b65e5ce3a6ceb442131b5dfb474a72ec14df 100644
--- a/net/quic/core/crypto/aes_128_gcm_12_encrypter.h
+++ b/net/quic/core/crypto/aes_128_gcm_12_encrypter.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_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_
-#define NET_QUIC_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_
+#ifndef NET_QUIC_CORE_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_
+#define NET_QUIC_CORE_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_
 
 #include <stddef.h>
 
@@ -35,4 +35,4 @@ class NET_EXPORT_PRIVATE Aes128Gcm12Encrypter : public AeadBaseEncrypter {
 
 }  // namespace net
 
-#endif  // NET_QUIC_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_
+#endif  // NET_QUIC_CORE_CRYPTO_AES_128_GCM_12_ENCRYPTER_H_