QUIC - (no behavior change) s/NULL/nullptr/g in .../quic/...

net/quic/quic_crypto_server_stream.h

 // 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.
 
 #ifndef NET_QUIC_QUIC_CRYPTO_SERVER_STREAM_H_
 #define NET_QUIC_QUIC_CRYPTO_SERVER_STREAM_H_
 
 #include <string>
 
 #include "net/quic/crypto/crypto_handshake.h"
@@ skipping 105 matching lines @@
   // hello message and handles handshake success/failure.
   void FinishProcessingHandshakeMessage(
       const CryptoHandshakeMessage& message,
       const ValidateClientHelloResultCallback::Result& result);
 
   // crypto_config_ contains crypto parameters for the handshake.
   const QuicCryptoServerConfig& crypto_config_;
 
   // Pointer to the active callback that will receive the result of
   // the client hello validation request and forward it to
-  // FinishProcessingHandshakeMessage for processing.  NULL if no
+  // FinishProcessingHandshakeMessage for processing.  nullptr if no
   // handshake message is being validated.
   ValidateCallback* validate_client_hello_cb_;
 
   // Number of handshake messages received by this stream.
   uint8 num_handshake_messages_;
 
   // Number of server config update (SCUP) messages sent by this stream.
   int num_server_config_update_messages_sent_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoServerStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CRYPTO_SERVER_STREAM_H_