Revert 162259 - Add QuicFramer and friends.

net/quic/crypto/null_decrypter.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_decrypter.h"
-#include "net/quic/quic_utils.h"
-#include "net/quic/quic_data_reader.h"
-
-using base::StringPiece;
-using std::string;
-
-namespace net {
-
-QuicData* NullDecrypter::Decrypt(StringPiece associated_data,
-                                 StringPiece ciphertext) {
-  QuicDataReader reader(ciphertext.data(), ciphertext.length());
-
-  uint128 hash;
-  if (!reader.ReadUInt128(&hash)) {
-    return NULL;
-  }
-
-  StringPiece plaintext = reader.ReadRemainingPayload();
-
-  // TODO(rch): avoid buffer copy here
-  string buffer = associated_data.as_string();
-  plaintext.AppendToString(&buffer);
-
-  if (hash != QuicUtils::FNV1a_128_Hash(buffer.data(), buffer.length())) {
-    return NULL;
-  }
-  return new QuicData(plaintext.data(), plaintext.length());
-}
-
-}  // namespace net