Oilpan: Replace most of RefPtrs for Event objects with oilpan's transition types

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 117 matching lines @@
     // ActiveDOMObject
     virtual void suspend() OVERRIDE;
     virtual void resume() OVERRIDE;
     virtual void stop() OVERRIDE;
     virtual bool hasPendingActivity() const OVERRIDE { return !m_stopped; }
 
 private:
     RTCPeerConnection(ExecutionContext*, PassRefPtr<RTCConfiguration>, blink::WebMediaConstraints, ExceptionState&);
 
     static PassRefPtr<RTCConfiguration> parseConfiguration(const Dictionary& configuration, ExceptionState&);
-    void scheduleDispatchEvent(PassRefPtr<Event>);
+    void scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event>);
     void dispatchScheduledEvent();
     bool hasLocalStreamWithTrackId(const String& trackId);
 
     void changeSignalingState(blink::WebRTCPeerConnectionHandlerClient::SignalingState);
     void changeIceGatheringState(blink::WebRTCPeerConnectionHandlerClient::ICEGatheringState);
     void changeIceConnectionState(blink::WebRTCPeerConnectionHandlerClient::ICEConnectionState);
 
     SignalingState m_signalingState;
     ICEGatheringState m_iceGatheringState;
     ICEConnectionState m_iceConnectionState;
 
     MediaStreamVector m_localStreams;
     MediaStreamVector m_remoteStreams;
 
     Vector<RefPtr<RTCDataChannel> > m_dataChannels;
 
     OwnPtr<blink::WebRTCPeerConnectionHandler> m_peerHandler;
 
     AsyncMethodRunner<RTCPeerConnection> m_dispatchScheduledEventRunner;
-    Vector<RefPtr<Event> > m_scheduledEvents;
+    WillBePersistentHeapVector<RefPtrWillBeMember<Event> > m_scheduledEvents;
 
     bool m_stopped;
 };
 
 } // namespace WebCore
 
 #endif // RTCPeerConnection_h