Remove references between RTCPeerConnection and RTCDataChannel.

third_party/WebKit/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 778 matching lines @@
         init.id = value;
     if (DictionaryHelper::get(options, "maxRetransmits", value))
         init.maxRetransmits = value;
     if (DictionaryHelper::get(options, "maxRetransmitTime", value))
         init.maxRetransmitTime = value;
 
     String protocolString;
     DictionaryHelper::get(options, "protocol", protocolString);
     init.protocol = protocolString;
 
-    RTCDataChannel* channel = RTCDataChannel::create(executionContext(), this, m_peerHandler.get(), label, init, exceptionState);
+    RTCDataChannel* channel = RTCDataChannel::create(executionContext(), m_peerHandler.get(), label, init, exceptionState);
     if (exceptionState.hadException())
         return nullptr;
-    m_dataChannels.append(channel);
     RTCDataChannel::ReadyState handlerState = channel->getHandlerState();
     if (handlerState != RTCDataChannel::ReadyStateConnecting) {
         // There was an early state transition.  Don't miss it!
         channel->didChangeReadyState(handlerState);
     }
     return channel;
 }
 
 bool RTCPeerConnection::hasLocalStreamWithTrackId(const String& trackId)
 {
@@ skipping 105 matching lines @@
 }
 
 void RTCPeerConnection::didAddRemoteDataChannel(WebRTCDataChannelHandler* handler)
 {
     ASSERT(!m_closed);
     ASSERT(executionContext()->isContextThread());
 
     if (m_signalingState == SignalingStateClosed)
         return;
 
-    RTCDataChannel* channel = RTCDataChannel::create(executionContext(), this, adoptPtr(handler));
-    m_dataChannels.append(channel);
-
+    RTCDataChannel* channel = RTCDataChannel::create(executionContext(), adoptPtr(handler));
     scheduleDispatchEvent(RTCDataChannelEvent::create(EventTypeNames::datachannel, false, false, channel));
 }
 
 void RTCPeerConnection::releasePeerConnectionHandler()
 {
     stop();
 }
 
 void RTCPeerConnection::closePeerConnection()
 {
@@ skipping 23 matching lines @@
 
 void RTCPeerConnection::stop()
 {
     if (m_stopped)
         return;
 
     m_stopped = true;
     m_iceConnectionState = ICEConnectionStateClosed;
     m_signalingState = SignalingStateClosed;
 
-    HeapVector<Member<RTCDataChannel>>::iterator i = m_dataChannels.begin();
-    for (; i != m_dataChannels.end(); ++i)
-        (*i)->stop();
-    m_dataChannels.clear();
-
     m_dispatchScheduledEventRunner->stop();
 
     m_peerHandler.clear();
 }
 
 void RTCPeerConnection::changeSignalingState(SignalingState signalingState)
 {
     if (m_signalingState != SignalingStateClosed && m_signalingState != signalingState) {
         m_signalingState = signalingState;
         scheduleDispatchEvent(Event::create(EventTypeNames::signalingstatechange));
@@ skipping 61 matching lines @@
         }
     }
 
     events.clear();
 }
 
 DEFINE_TRACE(RTCPeerConnection)
 {
     visitor->trace(m_localStreams);
     visitor->trace(m_remoteStreams);
-    visitor->trace(m_dataChannels);
     visitor->trace(m_dispatchScheduledEventRunner);
     visitor->trace(m_scheduledEvents);
     RefCountedGarbageCollectedEventTargetWithInlineData<RTCPeerConnection>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink