Move shared files in net/quic/ into net/quic/core/

net/quic/crypto/aes_128_gcm_12_encrypter.cc

-// Copyright (c) 2013 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/crypto/aes_128_gcm_12_encrypter.h"
-
-#include <openssl/evp.h>
-
-namespace net {
-
-namespace {
-
-const size_t kKeySize = 16;
-const size_t kNoncePrefixSize = 4;
-
-}  // namespace
-
-Aes128Gcm12Encrypter::Aes128Gcm12Encrypter()
-    : AeadBaseEncrypter(EVP_aead_aes_128_gcm(),
-                        kKeySize,
-                        kAuthTagSize,
-                        kNoncePrefixSize) {
-  static_assert(kKeySize <= kMaxKeySize, "key size too big");
-  static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize,
-                "nonce prefix size too big");
-}
-
-Aes128Gcm12Encrypter::~Aes128Gcm12Encrypter() {}
-
-}  // namespace net