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

net/quic/crypto/quic_encrypter.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_ENCRYPTER_H_
 #define NET_QUIC_CRYPTO_QUIC_ENCRYPTER_H_
 
 #include "net/base/net_export.h"
 #include "net/quic/quic_protocol.h"
 
@@ skipping 33 matching lines @@
   // nonce. |nonce| must be |8+GetNoncePrefixSize()| bytes long and |output|
   // must point to a buffer that is at least
   // |GetCiphertextSize(plaintext.size()| bytes long.
   virtual bool Encrypt(base::StringPiece nonce,
                        base::StringPiece associated_data,
                        base::StringPiece plaintext,
                        unsigned char* output) = 0;
 
   // Returns a newly created QuicData object containing the encrypted
   // |plaintext| as well as a MAC over both |plaintext| and |associated_data|,
-  // or NULL if there is an error. |sequence_number| is appended to the
+  // or nullptr if there is an error. |sequence_number| is appended to the
   // |nonce_prefix| value provided in SetNoncePrefix() to form the nonce.
   virtual QuicData* EncryptPacket(QuicPacketSequenceNumber sequence_number,
                                   base::StringPiece associated_data,
                                   base::StringPiece plaintext) = 0;
 
   // GetKeySize() and GetNoncePrefixSize() tell the HKDF class how many bytes
   // of key material needs to be derived from the master secret.
   // NOTE: the sizes returned by GetKeySize() and GetNoncePrefixSize() are
   // also correct for the QuicDecrypter of the same algorithm. So only
   // QuicEncrypter has these two methods.
@@ skipping 12 matching lines @@
   virtual size_t GetCiphertextSize(size_t plaintext_size) const = 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_ENCRYPTER_H_