Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/modules/mediastream/RTCPeerConnection.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 69 matching lines @@
     }
 
     return false;
 }
 
 } // namespace
 
 PassRefPtr<RTCConfiguration> RTCPeerConnection::parseConfiguration(const Dictionary& configuration, ExceptionState& exceptionState)
 {
     if (configuration.isUndefinedOrNull())
-        return 0;
+        return nullptr;
 
     ArrayValue iceServers;
     bool ok = configuration.get("iceServers", iceServers);
     if (!ok || iceServers.isUndefinedOrNull()) {
         exceptionState.throwTypeError("Malformed RTCConfiguration");
-        return 0;
+        return nullptr;
     }
 
     size_t numberOfServers;
     ok = iceServers.length(numberOfServers);
     if (!ok) {
         exceptionState.throwTypeError("Malformed RTCConfiguration");
-        return 0;
+        return nullptr;
     }
 
     RefPtr<RTCConfiguration> rtcConfiguration = RTCConfiguration::create();
 
     for (size_t i = 0; i < numberOfServers; ++i) {
         Dictionary iceServer;
         ok = iceServers.get(i, iceServer);
         if (!ok) {
             exceptionState.throwTypeError("Malformed RTCIceServer");
-            return 0;
+            return nullptr;
         }
 
         Vector<String> names;
         iceServer.getOwnPropertyNames(names);
 
         Vector<String> urlStrings;
         if (names.contains("urls")) {
             if (!iceServer.get("urls", urlStrings) || !urlStrings.size()) {
                 String urlString;
                 if (iceServer.get("urls", urlString)) {
                     urlStrings.append(urlString);
                 } else {
                     exceptionState.throwTypeError("Malformed RTCIceServer");
-                    return 0;
+                    return nullptr;
                 }
             }
         } else if (names.contains("url")) {
             String urlString;
             if (iceServer.get("url", urlString)) {
                 urlStrings.append(urlString);
             } else {
                 exceptionState.throwTypeError("Malformed RTCIceServer");
-                return 0;
+                return nullptr;
             }
         } else {
             exceptionState.throwTypeError("Malformed RTCIceServer");
-            return 0;
+            return nullptr;
         }
 
         String username, credential;
         iceServer.get("username", username);
         iceServer.get("credential", credential);
 
         for (Vector<String>::iterator iter = urlStrings.begin(); iter != urlStrings.end(); ++iter) {
             KURL url(KURL(), *iter);
             if (!url.isValid() || !(url.protocolIs("turn") || url.protocolIs("turns") || url.protocolIs("stun"))) {
                 exceptionState.throwTypeError("Malformed URL");
-                return 0;
+                return nullptr;
             }
 
             rtcConfiguration->appendServer(RTCIceServer::create(url, username, credential));
         }
     }
 
     return rtcConfiguration.release();
 }
 
 PassRefPtr<RTCPeerConnection> RTCPeerConnection::create(ExecutionContext* context, const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState& exceptionState)
 {
     RefPtr<RTCConfiguration> configuration = parseConfiguration(rtcConfiguration, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     blink::WebMediaConstraints constraints = MediaConstraintsImpl::create(mediaConstraints, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     RefPtr<RTCPeerConnection> peerConnection = adoptRef(new RTCPeerConnection(context, configuration.release(), constraints, exceptionState));
     peerConnection->suspendIfNeeded();
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
 
     return peerConnection.release();
 }
 
 RTCPeerConnection::RTCPeerConnection(ExecutionContext* context, PassRefPtr<RTCConfiguration> configuration, blink::WebMediaConstraints constraints, ExceptionState& exceptionState)
     : ActiveDOMObject(context)
     , m_signalingState(SignalingStateStable)
     , m_iceGatheringState(ICEGatheringStateNew)
     , m_iceConnectionState(ICEConnectionStateNew)
     , m_dispatchScheduledEventRunner(this, &RTCPeerConnection::dispatchScheduledEvent)
@@ skipping 74 matching lines @@
     }
 
     RefPtr<RTCVoidRequest> request = RTCVoidRequestImpl::create(executionContext(), successCallback, errorCallback);
     m_peerHandler->setLocalDescription(request.release(), sessionDescription->webSessionDescription());
 }
 
 PassRefPtr<RTCSessionDescription> RTCPeerConnection::localDescription(ExceptionState& exceptionState)
 {
     blink::WebRTCSessionDescription webSessionDescription = m_peerHandler->localDescription();
     if (webSessionDescription.isNull())
-        return 0;
+        return nullptr;
 
     RefPtr<RTCSessionDescription> sessionDescription = RTCSessionDescription::create(webSessionDescription);
     return sessionDescription.release();
 }
 
 void RTCPeerConnection::setRemoteDescription(PassRefPtr<RTCSessionDescription> prpSessionDescription, PassOwnPtr<VoidCallback> successCallback, PassOwnPtr<RTCErrorCallback> errorCallback, ExceptionState& exceptionState)
 {
     if (throwExceptionIfSignalingStateClosed(m_signalingState, exceptionState))
         return;
 
     RefPtr<RTCSessionDescription> sessionDescription = prpSessionDescription;
     if (!sessionDescription) {
         exceptionState.throwDOMException(TypeMismatchError, ExceptionMessages::argumentNullOrIncorrectType(1, "RTCSessionDescription"));
         return;
     }
 
     RefPtr<RTCVoidRequest> request = RTCVoidRequestImpl::create(executionContext(), successCallback, errorCallback);
     m_peerHandler->setRemoteDescription(request.release(), sessionDescription->webSessionDescription());
 }
 
 PassRefPtr<RTCSessionDescription> RTCPeerConnection::remoteDescription(ExceptionState& exceptionState)
 {
     blink::WebRTCSessionDescription webSessionDescription = m_peerHandler->remoteDescription();
     if (webSessionDescription.isNull())
-        return 0;
+        return nullptr;
 
     RefPtr<RTCSessionDescription> desc = RTCSessionDescription::create(webSessionDescription);
     return desc.release();
 }
 
 void RTCPeerConnection::updateIce(const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState& exceptionState)
 {
     if (throwExceptionIfSignalingStateClosed(m_signalingState, exceptionState))
         return;
 
@@ skipping 183 matching lines @@
 void RTCPeerConnection::getStats(PassOwnPtr<RTCStatsCallback> successCallback, PassRefPtr<MediaStreamTrack> selector)
 {
     RefPtr<RTCStatsRequest> statsRequest = RTCStatsRequestImpl::create(executionContext(), successCallback, selector);
     // FIXME: Add passing selector as part of the statsRequest.
     m_peerHandler->getStats(statsRequest.release());
 }
 
 PassRefPtr<RTCDataChannel> RTCPeerConnection::createDataChannel(String label, const Dictionary& options, ExceptionState& exceptionState)
 {
     if (throwExceptionIfSignalingStateClosed(m_signalingState, exceptionState))
-        return 0;
+        return nullptr;
 
     blink::WebRTCDataChannelInit init;
     options.get("ordered", init.ordered);
     options.get("negotiated", init.negotiated);
 
     unsigned short value = 0;
     if (options.get("id", value))
         init.id = value;
     if (options.get("maxRetransmits", value))
         init.maxRetransmits = value;
     if (options.get("maxRetransmitTime", value))
         init.maxRetransmitTime = value;
 
     String protocolString;
     options.get("protocol", protocolString);
     init.protocol = protocolString;
 
     RefPtr<RTCDataChannel> channel = RTCDataChannel::create(executionContext(), m_peerHandler.get(), label, init, exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
     m_dataChannels.append(channel);
     return channel.release();
 }
 
 bool RTCPeerConnection::hasLocalStreamWithTrackId(const String& trackId)
 {
     for (MediaStreamVector::iterator iter = m_localStreams.begin(); iter != m_localStreams.end(); ++iter) {
         if ((*iter)->getTrackById(trackId))
             return true;
     }
     return false;
 }
 
 PassRefPtr<RTCDTMFSender> RTCPeerConnection::createDTMFSender(PassRefPtr<MediaStreamTrack> prpTrack, ExceptionState& exceptionState)
 {
     if (throwExceptionIfSignalingStateClosed(m_signalingState, exceptionState))
-        return 0;
+        return nullptr;
 
     if (!prpTrack) {
         exceptionState.throwTypeError(ExceptionMessages::argumentNullOrIncorrectType(1, "MediaStreamTrack"));
-        return 0;
+        return nullptr;
     }
 
     RefPtr<MediaStreamTrack> track = prpTrack;
 
     if (!hasLocalStreamWithTrackId(track->id())) {
         exceptionState.throwDOMException(SyntaxError, "No local stream is available for the track provided.");
-        return 0;
+        return nullptr;
     }
 
     RefPtr<RTCDTMFSender> dtmfSender = RTCDTMFSender::create(executionContext(), m_peerHandler.get(), track.release(), exceptionState);
     if (exceptionState.hadException())
-        return 0;
+        return nullptr;
     return dtmfSender.release();
 }
 
 void RTCPeerConnection::close(ExceptionState& exceptionState)
 {
     if (throwExceptionIfSignalingStateClosed(m_signalingState, exceptionState))
         return;
 
     m_peerHandler->stop();
 
     changeIceConnectionState(ICEConnectionStateClosed);
     changeIceGatheringState(ICEGatheringStateComplete);
     changeSignalingState(SignalingStateClosed);
 }
 
 void RTCPeerConnection::negotiationNeeded()
 {
     scheduleDispatchEvent(Event::create(EventTypeNames::negotiationneeded));
 }
 
 void RTCPeerConnection::didGenerateICECandidate(const blink::WebRTCICECandidate& webCandidate)
 {
     ASSERT(executionContext()->isContextThread());
     if (webCandidate.isNull())
-        scheduleDispatchEvent(RTCIceCandidateEvent::create(false, false, 0));
+        scheduleDispatchEvent(RTCIceCandidateEvent::create(false, false, nullptr));
     else {
         RefPtr<RTCIceCandidate> iceCandidate = RTCIceCandidate::create(webCandidate);
         scheduleDispatchEvent(RTCIceCandidateEvent::create(false, false, iceCandidate.release()));
     }
 }
 
 void RTCPeerConnection::didChangeSignalingState(SignalingState newState)
 {
     ASSERT(executionContext()->isContextThread());
     changeSignalingState(newState);
@@ skipping 130 matching lines @@
     events.swap(m_scheduledEvents);
 
     Vector<RefPtr<Event> >::iterator it = events.begin();
     for (; it != events.end(); ++it)
         dispatchEvent((*it).release());
 
     events.clear();
 }
 
 } // namespace WebCore