Removing NSS files and USE_OPENSSL flag

net/quic/crypto/aes_128_gcm_12_encrypter_nss.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 <pk11pub.h>
-#include <secerr.h>
-
-using base::StringPiece;
-
-namespace net {
-
-namespace {
-
-const size_t kKeySize = 16;
-const size_t kNoncePrefixSize = 4;
-
-}  // namespace
-
-Aes128Gcm12Encrypter::Aes128Gcm12Encrypter()
-    : AeadBaseEncrypter(CKM_AES_GCM, kKeySize, kAuthTagSize, kNoncePrefixSize) {
-  static_assert(kKeySize <= kMaxKeySize, "key size too big");
-  static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize,
-                "nonce prefix size too big");
-}
-
-Aes128Gcm12Encrypter::~Aes128Gcm12Encrypter() {}
-
-void Aes128Gcm12Encrypter::FillAeadParams(StringPiece nonce,
-                                          StringPiece associated_data,
-                                          size_t auth_tag_size,
-                                          AeadParams* aead_params) const {
-  aead_params->len = sizeof(aead_params->data.gcm_params);
-  CK_GCM_PARAMS* gcm_params = &aead_params->data.gcm_params;
-  gcm_params->pIv = reinterpret_cast<CK_BYTE*>(const_cast<char*>(nonce.data()));
-  gcm_params->ulIvLen = nonce.size();
-  gcm_params->pAAD =
-      reinterpret_cast<CK_BYTE*>(const_cast<char*>(associated_data.data()));
-  gcm_params->ulAADLen = associated_data.size();
-  gcm_params->ulTagBits = auth_tag_size * 8;
-}
-
-}  // namespace net