Replace NULL with nullptr in all C++ files.

webrtc/test/rtp_file_reader_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.
  */
 
 #include <map>
 #include <memory>
 
 #include "webrtc/modules/rtp_rtcp/source/rtp_utility.h"
 #include "webrtc/test/gtest.h"
 #include "webrtc/test/rtp_file_reader.h"
 #include "webrtc/test/testsupport/fileutils.h"
 
 namespace webrtc {
 
 class TestRtpFileReader : public ::testing::Test {
  public:
   void Init(const std::string& filename, bool headers_only_file) {
     std::string filepath =
         test::ResourcePath("video_coding/" + filename, "rtp");
     rtp_packet_source_.reset(
         test::RtpFileReader::Create(test::RtpFileReader::kRtpDump, filepath));
-    ASSERT_TRUE(rtp_packet_source_.get() != NULL);
+    ASSERT_TRUE(rtp_packet_source_.get() != nullptr);
     headers_only_file_ = headers_only_file;
   }
 
   int CountRtpPackets() {
     test::RtpPacket packet;
     int c = 0;
     while (rtp_packet_source_->NextPacket(&packet)) {
       if (headers_only_file_)
         EXPECT_LT(packet.length, packet.original_length);
       else
@@ skipping 20 matching lines @@
 
 typedef std::map<uint32_t, int> PacketsPerSsrc;
 
 class TestPcapFileReader : public ::testing::Test {
  public:
   void Init(const std::string& filename) {
     std::string filepath =
         test::ResourcePath("video_coding/" + filename, "pcap");
     rtp_packet_source_.reset(
         test::RtpFileReader::Create(test::RtpFileReader::kPcap, filepath));
-    ASSERT_TRUE(rtp_packet_source_.get() != NULL);
+    ASSERT_TRUE(rtp_packet_source_.get() != nullptr);
   }
 
   int CountRtpPackets() {
     int c = 0;
     test::RtpPacket packet;
     while (rtp_packet_source_->NextPacket(&packet)) {
       EXPECT_EQ(packet.length, packet.original_length);
       c++;
     }
     return c;
@@ skipping 37 matching lines @@
 
 TEST_F(TestPcapFileReader, TestThreeSsrc) {
   Init("ssrcs-3");
   PacketsPerSsrc pps = CountRtpPacketsPerSsrc();
   EXPECT_EQ(3UL, pps.size());
   EXPECT_EQ(162, pps[0x938c5eaa]);
   EXPECT_EQ(113, pps[0x59fe6ef0]);
   EXPECT_EQ(61, pps[0xed2bd2ac]);
 }
 }  // namespace webrtc