Oilpan: Use weak processing to stop a closed RTCPeerConnection

Source/modules/mediastream/RTCPeerConnection.h

 /*
  * 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 123 matching lines @@
     // ActiveDOMObject
     virtual void suspend() OVERRIDE;
     virtual void resume() OVERRIDE;
     virtual void stop() OVERRIDE;
     // We keep the this object alive until either stopped or closed.
     virtual bool hasPendingActivity() const OVERRIDE
     {
         return !m_closed && !m_stopped;
     }
 
+    void clearWeakMembers(Visitor*);
     virtual void trace(Visitor*) OVERRIDE;
 
 private:
     RTCPeerConnection(ExecutionContext*, PassRefPtr<RTCConfiguration>, blink::WebMediaConstraints, ExceptionState&);
 
     static PassRefPtr<RTCConfiguration> parseConfiguration(const Dictionary& configuration, ExceptionState&);
     void scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event>);
     void dispatchScheduledEvent();
     bool hasLocalStreamWithTrackId(const String& trackId);
 
@@ skipping 15 matching lines @@
     AsyncMethodRunner<RTCPeerConnection> m_dispatchScheduledEventRunner;
     WillBeHeapVector<RefPtrWillBeMember<Event> > m_scheduledEvents;
 
     bool m_stopped;
     bool m_closed;
 };
 
 } // namespace WebCore
 
 #endif // RTCPeerConnection_h