Simplify lifetime management of ValidateClientHelloResultCallback::Result objects

net/tools/quic/stateless_rejector.h

 // Copyright 2016 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.
 
 #ifndef NET_QUIC_STATELESS_REJECTOR_H_
 #define NET_QUIC_STATELESS_REJECTOR_H_
 
 #include "base/strings/string_piece.h"
 #include "net/quic/core/crypto/crypto_framer.h"
 #include "net/quic/core/crypto/quic_crypto_server_config.h"
@@ skipping 58 matching lines @@
   // Returns the SREJ message when state() returns REJECTED.
   const CryptoHandshakeMessage& reply() const { return reply_; }
 
  private:
   // Helper class which is passed in to
   // QuicCryptoServerConfig::ValidateClientHello.
   class ValidateCallback;
   friend class ValidateCallback;
 
   void ProcessClientHello(
-      const CryptoHandshakeMessage& client_hello,
       const ValidateClientHelloResultCallback::Result& result,
       std::unique_ptr<StatelessRejector> rejector,
       std::unique_ptr<StatelessRejector::ProcessDoneCallback> cb);
 
   State state_;
   QuicErrorCode error_;
   std::string error_details_;
   QuicVersion version_;
   QuicVersionVector versions_;
   QuicConnectionId connection_id_;
   QuicConnectionId server_designated_connection_id_;
   QuicByteCount chlo_packet_size_;
   IPEndPoint client_address_;
   IPEndPoint server_address_;
   const QuicClock* clock_;
   QuicRandom* random_;
   const QuicCryptoServerConfig* crypto_config_;
   QuicCompressedCertsCache* compressed_certs_cache_;
   CryptoHandshakeMessage chlo_;
   CryptoHandshakeMessage reply_;
   CryptoFramer crypto_framer_;
   QuicCryptoProof proof_;
 
   DISALLOW_COPY_AND_ASSIGN(StatelessRejector);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_STATELESS_REJECTOR_H_