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

net/quic/crypto/quic_decrypter.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_CRYPTO_QUIC_DECRYPTER_H_
 #define NET_QUIC_CRYPTO_QUIC_DECRYPTER_H_
 
 #include "net/base/net_export.h"
 #include "net/quic/quic_protocol.h"
 
@@ skipping 34 matching lines @@
   // encrypter). |output| must be as long as |ciphertext| on entry and, on
   // successful return, the true length of the plaintext will be written to
   // |*output_length|.
   virtual bool Decrypt(base::StringPiece nonce,
                        base::StringPiece associated_data,
                        base::StringPiece ciphertext,
                        unsigned char* output,
                        size_t* output_length) = 0;
 
   // Returns a newly created QuicData object containing the decrypted
-  // |ciphertext| or NULL if there is an error. |sequence_number| is
+  // |ciphertext| or nullptr if there is an error. |sequence_number| is
   // appended to the |nonce_prefix| value provided in SetNoncePrefix()
   // to form the nonce.
   // TODO(wtc): add a way for DecryptPacket to report decryption failure due
   // to non-authentic inputs, as opposed to other reasons for failure.
   virtual QuicData* DecryptPacket(QuicPacketSequenceNumber sequence_number,
                                   base::StringPiece associated_data,
                                   base::StringPiece ciphertext) = 0;
 
   // For use by unit tests only.
   virtual base::StringPiece GetKey() const = 0;
   virtual base::StringPiece GetNoncePrefix() const = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_QUIC_DECRYPTER_H_