Replace NULL with nullptr in all C++ files.

webrtc/modules/rtp_rtcp/source/receive_statistics_unittest.cc

 /*
  *  Copyright (c) 2013 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.
  */
 
@@ skipping 37 matching lines @@
   receive_statistics_->IncomingPacket(header2_, kPacketSize2, false);
   ++header2_.sequenceNumber;
   clock_.AdvanceTimeMilliseconds(100);
   receive_statistics_->IncomingPacket(header1_, kPacketSize1, false);
   ++header1_.sequenceNumber;
   receive_statistics_->IncomingPacket(header2_, kPacketSize2, false);
   ++header2_.sequenceNumber;
 
   StreamStatistician* statistician =
       receive_statistics_->GetStatistician(kSsrc1);
-  ASSERT_TRUE(statistician != NULL);
+  ASSERT_TRUE(statistician != nullptr);
   EXPECT_GT(statistician->BitrateReceived(), 0u);
   size_t bytes_received = 0;
   uint32_t packets_received = 0;
   statistician->GetDataCounters(&bytes_received, &packets_received);
   EXPECT_EQ(200u, bytes_received);
   EXPECT_EQ(2u, packets_received);
 
   statistician =
       receive_statistics_->GetStatistician(kSsrc2);
-  ASSERT_TRUE(statistician != NULL);
+  ASSERT_TRUE(statistician != nullptr);
   EXPECT_GT(statistician->BitrateReceived(), 0u);
   statistician->GetDataCounters(&bytes_received, &packets_received);
   EXPECT_EQ(600u, bytes_received);
   EXPECT_EQ(2u, packets_received);
 
   StatisticianMap statisticians = receive_statistics_->GetActiveStatisticians();
   EXPECT_EQ(2u, statisticians.size());
   // Add more incoming packets and verify that they are registered in both
   // access methods.
   receive_statistics_->IncomingPacket(header1_, kPacketSize1, false);
@@ skipping 39 matching lines @@
   statisticians = receive_statistics_->GetActiveStatisticians();
   EXPECT_EQ(0u, statisticians.size());
 
   receive_statistics_->IncomingPacket(header1_, kPacketSize1, false);
   ++header1_.sequenceNumber;
   // kSsrc1 should be active again and the data counters should have survived.
   statisticians = receive_statistics_->GetActiveStatisticians();
   EXPECT_EQ(1u, statisticians.size());
   StreamStatistician* statistician =
       receive_statistics_->GetStatistician(kSsrc1);
-  ASSERT_TRUE(statistician != NULL);
+  ASSERT_TRUE(statistician != nullptr);
   size_t bytes_received = 0;
   uint32_t packets_received = 0;
   statistician->GetDataCounters(&bytes_received, &packets_received);
   EXPECT_EQ(200u, bytes_received);
   EXPECT_EQ(2u, packets_received);
 }
 
 TEST_F(ReceiveStatisticsTest, GetReceiveStreamDataCounters) {
   receive_statistics_->IncomingPacket(header1_, kPacketSize1, false);
   StreamStatistician* statistician =
       receive_statistics_->GetStatistician(kSsrc1);
-  ASSERT_TRUE(statistician != NULL);
+  ASSERT_TRUE(statistician != nullptr);
 
   StreamDataCounters counters;
   statistician->GetReceiveStreamDataCounters(&counters);
   EXPECT_GT(counters.first_packet_time_ms, -1);
   EXPECT_EQ(1u, counters.transmitted.packets);
 
   receive_statistics_->IncomingPacket(header1_, kPacketSize1, false);
   statistician->GetReceiveStreamDataCounters(&counters);
   EXPECT_GT(counters.first_packet_time_ms, -1);
   EXPECT_EQ(2u, counters.transmitted.packets);
@@ skipping 53 matching lines @@
   EXPECT_EQ(statistics.cumulative_lost, callback.stats_.cumulative_lost);
   EXPECT_EQ(statistics.extended_max_sequence_number,
             callback.stats_.extended_max_sequence_number);
   EXPECT_EQ(statistics.fraction_lost, callback.stats_.fraction_lost);
   EXPECT_EQ(statistics.jitter, callback.stats_.jitter);
   EXPECT_EQ(51, statistics.fraction_lost);
   EXPECT_EQ(1u, statistics.cumulative_lost);
   EXPECT_EQ(5u, statistics.extended_max_sequence_number);
   EXPECT_EQ(4u, statistics.jitter);
 
-  receive_statistics_->RegisterRtcpStatisticsCallback(NULL);
+  receive_statistics_->RegisterRtcpStatisticsCallback(nullptr);
 
   // Add some more data.
   header1_.sequenceNumber = 1;
   clock_.AdvanceTimeMilliseconds(7);
   header1_.timestamp += 3;
   receive_statistics_->IncomingPacket(header1_, kPacketSize1, false);
   header1_.sequenceNumber += 2;
   clock_.AdvanceTimeMilliseconds(9);
   header1_.timestamp += 9;
   receive_statistics_->IncomingPacket(header1_, kPacketSize1, false);
@@ skipping 108 matching lines @@
   receive_statistics_->FecPacketReceived(header1_,
                                          kPacketSize1 + kHeaderLength);
   expected.transmitted.payload_bytes = kPacketSize1 * 4;
   expected.transmitted.header_bytes = kHeaderLength * 4;
   expected.transmitted.packets = 4;
   expected.fec.payload_bytes = kPacketSize1;
   expected.fec.header_bytes = kHeaderLength;
   expected.fec.packets = 1;
   callback.Matches(5, kSsrc1, expected);
 
-  receive_statistics_->RegisterRtpStatisticsCallback(NULL);
+  receive_statistics_->RegisterRtpStatisticsCallback(nullptr);
 
   // New stats, but callback should not be called.
   ++header1_.sequenceNumber;
   clock_.AdvanceTimeMilliseconds(5);
   receive_statistics_->IncomingPacket(
       header1_, kPacketSize1 + kHeaderLength, true);
   callback.Matches(5, kSsrc1, expected);
 }
 
 TEST_F(ReceiveStatisticsTest, RtpCallbacksFecFirst) {
@@ skipping 19 matching lines @@
   callback.Matches(1, kSsrc1, expected);
 
   receive_statistics_->FecPacketReceived(header1_,
                                          kPacketSize1 + kHeaderLength);
   expected.fec.payload_bytes = kPacketSize1;
   expected.fec.header_bytes = kHeaderLength;
   expected.fec.packets = 1;
   callback.Matches(2, kSsrc1, expected);
 }
 }  // namespace webrtc