Replace NULL with nullptr in all C++ files.

webrtc/examples/peerconnection/client/conductor.cc

 /*
  *  Copyright 2012 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 45 matching lines @@
 Conductor::Conductor(PeerConnectionClient* client, MainWindow* main_wnd)
   : peer_id_(-1),
     loopback_(false),
     client_(client),
     main_wnd_(main_wnd) {
   client_->RegisterObserver(this);
   main_wnd->RegisterObserver(this);
 }
 
 Conductor::~Conductor() {
-  RTC_DCHECK(peer_connection_.get() == NULL);
+  RTC_DCHECK(peer_connection_.get() == nullptr);
 }
 
 bool Conductor::connection_active() const {
-  return peer_connection_.get() != NULL;
+  return peer_connection_.get() != nullptr;
 }
 
 void Conductor::Close() {
   client_->SignOut();
   DeletePeerConnection();
 }
 
 bool Conductor::InitializePeerConnection() {
-  RTC_DCHECK(peer_connection_factory_.get() == NULL);
-  RTC_DCHECK(peer_connection_.get() == NULL);
+  RTC_DCHECK(peer_connection_factory_.get() == nullptr);
+  RTC_DCHECK(peer_connection_.get() == nullptr);
 
   peer_connection_factory_  = webrtc::CreatePeerConnectionFactory();
 
   if (!peer_connection_factory_.get()) {
     main_wnd_->MessageBox("Error",
         "Failed to initialize PeerConnectionFactory", true);
     DeletePeerConnection();
     return false;
   }
 
   if (!CreatePeerConnection(DTLS_ON)) {
     main_wnd_->MessageBox("Error",
         "CreatePeerConnection failed", true);
     DeletePeerConnection();
   }
   AddStreams();
-  return peer_connection_.get() != NULL;
+  return peer_connection_.get() != nullptr;
 }
 
 bool Conductor::ReinitializePeerConnectionForLoopback() {
   loopback_ = true;
   rtc::scoped_refptr<webrtc::StreamCollectionInterface> streams(
       peer_connection_->local_streams());
-  peer_connection_ = NULL;
+  peer_connection_ = nullptr;
   if (CreatePeerConnection(DTLS_OFF)) {
     for (size_t i = 0; i < streams->count(); ++i)
       peer_connection_->AddStream(streams->at(i));
-    peer_connection_->CreateOffer(this, NULL);
+    peer_connection_->CreateOffer(this, nullptr);
   }
-  return peer_connection_.get() != NULL;
+  return peer_connection_.get() != nullptr;
 }
 
 bool Conductor::CreatePeerConnection(bool dtls) {
-  RTC_DCHECK(peer_connection_factory_.get() != NULL);
-  RTC_DCHECK(peer_connection_.get() == NULL);
+  RTC_DCHECK(peer_connection_factory_.get() != nullptr);
+  RTC_DCHECK(peer_connection_.get() == nullptr);
 
   webrtc::PeerConnectionInterface::RTCConfiguration config;
   webrtc::PeerConnectionInterface::IceServer server;
   server.uri = GetPeerConnectionString();
   config.servers.push_back(server);
 
   webrtc::FakeConstraints constraints;
   if (dtls) {
     constraints.AddOptional(webrtc::MediaConstraintsInterface::kEnableDtlsSrtp,
                             "true");
   } else {
     constraints.AddOptional(webrtc::MediaConstraintsInterface::kEnableDtlsSrtp,
                             "false");
   }
 
   peer_connection_ = peer_connection_factory_->CreatePeerConnection(
-      config, &constraints, NULL, NULL, this);
-  return peer_connection_.get() != NULL;
+      config, &constraints, nullptr, nullptr, this);
+  return peer_connection_.get() != nullptr;
 }
 
 void Conductor::DeletePeerConnection() {
-  peer_connection_ = NULL;
+  peer_connection_ = nullptr;
   active_streams_.clear();
   main_wnd_->StopLocalRenderer();
   main_wnd_->StopRemoteRenderer();
-  peer_connection_factory_ = NULL;
+  peer_connection_factory_ = nullptr;
   peer_id_ = -1;
   loopback_ = false;
 }
 
 void Conductor::EnsureStreamingUI() {
-  RTC_DCHECK(peer_connection_.get() != NULL);
+  RTC_DCHECK(peer_connection_.get() != nullptr);
   if (main_wnd_->IsWindow()) {
     if (main_wnd_->current_ui() != MainWindow::STREAMING)
       main_wnd_->SwitchToStreamingUI();
   }
 }
 
 //
 // PeerConnectionObserver implementation.
 //
 
@@ skipping 56 matching lines @@
   LOG(INFO) << __FUNCTION__;
   // Refresh the list if we're showing it.
   if (main_wnd_->current_ui() == MainWindow::LIST_PEERS)
     main_wnd_->SwitchToPeerList(client_->peers());
 }
 
 void Conductor::OnPeerDisconnected(int id) {
   LOG(INFO) << __FUNCTION__;
   if (id == peer_id_) {
     LOG(INFO) << "Our peer disconnected";
-    main_wnd_->QueueUIThreadCallback(PEER_CONNECTION_CLOSED, NULL);
+    main_wnd_->QueueUIThreadCallback(PEER_CONNECTION_CLOSED, nullptr);
   } else {
     // Refresh the list if we're showing it.
     if (main_wnd_->current_ui() == MainWindow::LIST_PEERS)
       main_wnd_->SwitchToPeerList(client_->peers());
   }
 }
 
 void Conductor::OnMessageFromPeer(int peer_id, const std::string& message) {
   RTC_DCHECK(peer_id_ == peer_id || peer_id_ == -1);
   RTC_DCHECK(!message.empty());
@@ skipping 48 matching lines @@
     if (!session_description) {
       LOG(WARNING) << "Can't parse received session description message. "
           << "SdpParseError was: " << error.description;
       return;
     }
     LOG(INFO) << " Received session description :" << message;
     peer_connection_->SetRemoteDescription(
         DummySetSessionDescriptionObserver::Create(), session_description);
     if (session_description->type() ==
         webrtc::SessionDescriptionInterface::kOffer) {
-      peer_connection_->CreateAnswer(this, NULL);
+      peer_connection_->CreateAnswer(this, nullptr);
     }
     return;
   } else {
     std::string sdp_mid;
     int sdp_mlineindex = 0;
     std::string sdp;
     if (!rtc::GetStringFromJsonObject(jmessage, kCandidateSdpMidName,
                                       &sdp_mid) ||
         !rtc::GetIntFromJsonObject(jmessage, kCandidateSdpMlineIndexName,
                                    &sdp_mlineindex) ||
@@ skipping 13 matching lines @@
       LOG(WARNING) << "Failed to apply the received candidate";
       return;
     }
     LOG(INFO) << " Received candidate :" << message;
     return;
   }
 }
 
 void Conductor::OnMessageSent(int err) {
   // Process the next pending message if any.
-  main_wnd_->QueueUIThreadCallback(SEND_MESSAGE_TO_PEER, NULL);
+  main_wnd_->QueueUIThreadCallback(SEND_MESSAGE_TO_PEER, nullptr);
 }
 
 void Conductor::OnServerConnectionFailure() {
     main_wnd_->MessageBox("Error", ("Failed to connect to " + server_).c_str(),
                           true);
 }
 
 //
 // MainWndCallback implementation.
 //
@@ skipping 15 matching lines @@
   RTC_DCHECK(peer_id != -1);
 
   if (peer_connection_.get()) {
     main_wnd_->MessageBox("Error",
         "We only support connecting to one peer at a time", true);
     return;
   }
 
   if (InitializePeerConnection()) {
     peer_id_ = peer_id;
-    peer_connection_->CreateOffer(this, NULL);
+    peer_connection_->CreateOffer(this, nullptr);
   } else {
     main_wnd_->MessageBox("Error", "Failed to initialize PeerConnection", true);
   }
 }
 
 cricket::VideoCapturer* Conductor::OpenVideoCaptureDevice() {
   std::vector<std::string> device_names;
   {
     std::unique_ptr<webrtc::VideoCaptureModule::DeviceInfo> info(
         webrtc::VideoCaptureFactory::CreateDeviceInfo());
@@ skipping 21 matching lines @@
   }
   return capturer;
 }
 
 void Conductor::AddStreams() {
   if (active_streams_.find(kStreamLabel) != active_streams_.end())
     return;  // Already added.
 
   rtc::scoped_refptr<webrtc::AudioTrackInterface> audio_track(
       peer_connection_factory_->CreateAudioTrack(
-          kAudioLabel, peer_connection_factory_->CreateAudioSource(NULL)));
+          kAudioLabel, peer_connection_factory_->CreateAudioSource(nullptr)));
 
   rtc::scoped_refptr<webrtc::VideoTrackInterface> video_track(
       peer_connection_factory_->CreateVideoTrack(
-          kVideoLabel,
-          peer_connection_factory_->CreateVideoSource(OpenVideoCaptureDevice(),
-                                                      NULL)));
+          kVideoLabel, peer_connection_factory_->CreateVideoSource(
+                           OpenVideoCaptureDevice(), nullptr)));
   main_wnd_->StartLocalRenderer(video_track);
 
   rtc::scoped_refptr<webrtc::MediaStreamInterface> stream =
       peer_connection_factory_->CreateLocalMediaStream(kStreamLabel);
 
   stream->AddTrack(audio_track);
   stream->AddTrack(video_track);
   if (!peer_connection_->AddStream(stream)) {
     LOG(LS_ERROR) << "Adding stream to PeerConnection failed";
   }
@@ skipping 115 matching lines @@
 }
 
 void Conductor::OnFailure(const std::string& error) {
     LOG(LERROR) << error;
 }
 
 void Conductor::SendMessage(const std::string& json_object) {
   std::string* msg = new std::string(json_object);
   main_wnd_->QueueUIThreadCallback(SEND_MESSAGE_TO_PEER, msg);
 }