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

net/quic/congestion_control/send_algorithm_simulator.h

 // Copyright 2014 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.
 
 // A test only class to enable simulations of send algorithms.
 
 #ifndef NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_SIMULATOR_H_
 #define NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_SIMULATOR_H_
 
 #include <algorithm>
@@ skipping 76 matching lines @@
     QuicByteCount bytes_in_flight;
     QuicTime start_time;
   };
 
   struct SentPacket {
     SentPacket()
         : sequence_number(0),
           send_time(QuicTime::Zero()),
           ack_time(QuicTime::Zero()),
           lost(false),
-          transfer(NULL) {}
+          transfer(nullptr) {}
     SentPacket(QuicPacketSequenceNumber sequence_number,
                QuicTime send_time,
                QuicTime ack_time,
                bool lost,
                Transfer* transfer)
         : sequence_number(sequence_number),
           send_time(send_time),
           ack_time(ack_time),
           lost(lost),
           transfer(transfer) {}
@@ skipping 114 matching lines @@
   QuicTime::Delta rtt_;
   size_t buffer_size_;       // In bytes.
   QuicTime::Delta delayed_ack_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SendAlgorithmSimulator);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_SIMULATOR_H_