Revert 162259 - Add QuicFramer and friends.

net/quic/crypto/null_encrypter.cc

-// Copyright (c) 2012 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/null_encrypter.h"
-#include "net/quic/quic_data_writer.h"
-#include "net/quic/quic_utils.h"
-
-using base::StringPiece;
-using std::string;
-
-namespace net {
-
-const size_t kHashSize = 16;  // size of uint128 serialized
-
-QuicData* NullEncrypter::Encrypt(StringPiece associated_data,
-                                 StringPiece plaintext) {
-  // TODO(rch): avoid buffer copy here
-  string buffer = associated_data.as_string();
-  plaintext.AppendToString(&buffer);
-  uint128 hash = QuicUtils::FNV1a_128_Hash(buffer.data(), buffer.length());
-  QuicDataWriter writer(plaintext.length() + kHashSize);
-  writer.WriteUInt128(hash);
-  writer.WriteBytes(plaintext.data(), plaintext.length());
-  size_t len = writer.length();
-  return new QuicData(writer.take(), len, true);
-}
-
-size_t NullEncrypter::GetMaxPlaintextSize(size_t ciphertext_size) {
-  return ciphertext_size - kHashSize;
-}
-
-size_t NullEncrypter::GetCiphertextSize(size_t plaintext_size) {
-  return plaintext_size + kHashSize;
-}
-
-}  // namespace net