Replace NULL with nullptr in all C++ files.

webrtc/media/engine/fakewebrtccall.cc

 /*
  *  Copyright (c) 2015 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 91 matching lines @@
 
 FakeVideoSendStream::FakeVideoSendStream(
     webrtc::VideoSendStream::Config config,
     webrtc::VideoEncoderConfig encoder_config)
     : sending_(false),
       config_(std::move(config)),
       codec_settings_set_(false),
       resolution_scaling_enabled_(false),
       source_(nullptr),
       num_swapped_frames_(0) {
-  RTC_DCHECK(config.encoder_settings.encoder != NULL);
+  RTC_DCHECK(config.encoder_settings.encoder != nullptr);
   ReconfigureVideoEncoder(std::move(encoder_config));
 }
 
 FakeVideoSendStream::~FakeVideoSendStream() {
   if (source_)
     source_->RemoveSink(this);
 }
 
 const webrtc::VideoSendStream::Config& FakeVideoSendStream::GetConfig() const {
   return config_;
@@ skipping 82 matching lines @@
     webrtc::VideoEncoderConfig config) {
   int width, height;
   if (last_frame_) {
     width = last_frame_->width();
     height = last_frame_->height();
   } else {
     width = height = 0;
   }
   video_streams_ = config.video_stream_factory->CreateEncoderStreams(
       width, height, config);
-  if (config.encoder_specific_settings != NULL) {
+  if (config.encoder_specific_settings != nullptr) {
     if (config_.encoder_settings.payload_name == "VP8") {
       config.encoder_specific_settings->FillVideoCodecVp8(&vpx_settings_.vp8);
       if (!video_streams_.empty()) {
         vpx_settings_.vp8.numberOfTemporalLayers = static_cast<unsigned char>(
             video_streams_.back().temporal_layer_thresholds_bps.size() + 1);
       }
     } else if (config_.encoder_settings.payload_name == "VP9") {
       config.encoder_specific_settings->FillVideoCodecVp9(&vpx_settings_.vp9);
       if (!video_streams_.empty()) {
         vpx_settings_.vp9.numberOfTemporalLayers = static_cast<unsigned char>(
             video_streams_.back().temporal_layer_thresholds_bps.size() + 1);
       }
     } else {
       ADD_FAILURE() << "Unsupported encoder payload: "
                     << config_.encoder_settings.payload_name;
     }
   }
-  codec_settings_set_ = config.encoder_specific_settings != NULL;
+  codec_settings_set_ = config.encoder_specific_settings != nullptr;
   encoder_config_ = std::move(config);
   ++num_encoder_reconfigurations_;
 }
 
 void FakeVideoSendStream::Start() {
   sending_ = true;
 }
 
 void FakeVideoSendStream::Stop() {
   sending_ = false;
@@ skipping 350 matching lines @@
 }
 
 void FakeCall::OnSentPacket(const rtc::SentPacket& sent_packet) {
   last_sent_packet_ = sent_packet;
   if (sent_packet.packet_id >= 0) {
     last_sent_nonnegative_packet_id_ = sent_packet.packet_id;
   }
 }
 
 }  // namespace cricket