Replace NULL with nullptr in all C++ files.

webrtc/modules/remote_bitrate_estimator/tools/rtp_to_text.cc

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include <stdio.h>
 
 #include <memory>
 #include <sstream>
 
 #include "webrtc/base/format_macros.h"
 #include "webrtc/modules/remote_bitrate_estimator/tools/bwe_rtp.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_header_parser.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_payload_registry.h"
 #include "webrtc/test/rtp_file_reader.h"
 
 int main(int argc, char** argv) {
   webrtc::test::RtpFileReader* reader;
   webrtc::RtpHeaderParser* parser;
-  if (!ParseArgsAndSetupEstimator(argc, argv, NULL, NULL, &reader, &parser,
-                                  NULL, NULL)) {
+  if (!ParseArgsAndSetupEstimator(argc, argv, nullptr, nullptr, &reader,
+                                  &parser, nullptr, nullptr)) {
     return -1;
   }
   bool arrival_time_only = (argc >= 5 && strncmp(argv[4], "-t", 2) == 0);
   std::unique_ptr<webrtc::test::RtpFileReader> rtp_reader(reader);
   std::unique_ptr<webrtc::RtpHeaderParser> rtp_parser(parser);
   fprintf(stdout, "seqnum timestamp ts_offset abs_sendtime recvtime "
           "markerbit ssrc size original_size\n");
   int packet_counter = 0;
   int non_zero_abs_send_time = 0;
   int non_zero_ts_offsets = 0;
@@ skipping 24 matching lines @@
     }
     ++packet_counter;
   }
   fprintf(stderr, "Parsed %d packets\n", packet_counter);
   fprintf(stderr, "Packets with non-zero absolute send time: %d\n",
          non_zero_abs_send_time);
   fprintf(stderr, "Packets with non-zero timestamp offset: %d\n",
          non_zero_ts_offsets);
   return 0;
 }