Move mediastream module to oilpan transition types

Source/modules/mediastream/MediaStreamTrack.h

Index: Source/modules/mediastream/MediaStreamTrack.h
diff --git a/Source/modules/mediastream/MediaStreamTrack.h b/Source/modules/mediastream/MediaStreamTrack.h
index 0206669cff272dda43d4576ca3e8bb00859b3a5c..8a146e8611d03897b6e45cebd9e3f00ee28518b4 100644
--- a/Source/modules/mediastream/MediaStreamTrack.h
+++ b/Source/modules/mediastream/MediaStreamTrack.h
@@ -43,10 +43,10 @@ class ExceptionState;
 class MediaStreamComponent;
 class MediaStreamTrackSourcesCallback;
 
-class MediaStreamTrack FINAL : public RefCounted<MediaStreamTrack>, public ScriptWrappable, public ActiveDOMObject, public EventTargetWithInlineData, public MediaStreamSource::Observer {
-    REFCOUNTED_EVENT_TARGET(MediaStreamTrack);
+class MediaStreamTrack FINAL : public RefCountedWillBeRefCountedGarbageCollected<MediaStreamTrack>, public ScriptWrappable, public ActiveDOMObject, public EventTargetWithInlineData, public MediaStreamSource::Observer {
+    DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<MediaStreamTrack>);
 public:
-    static PassRefPtr<MediaStreamTrack> create(ExecutionContext*, MediaStreamComponent*);
+    static PassRefPtrWillBeRawPtr<MediaStreamTrack> create(ExecutionContext*, MediaStreamComponent*);
     virtual ~MediaStreamTrack();
 
     String kind() const;
@@ -77,6 +77,8 @@ public:
     // ActiveDOMObject
     virtual void stop() OVERRIDE;
 
+    void trace(Visitor*) { }
+
 private:
     MediaStreamTrack(ExecutionContext*, MediaStreamComponent*);
 
@@ -87,7 +89,7 @@ private:
     RefPtr<MediaStreamComponent> m_component;
 };
 
-typedef Vector<RefPtr<MediaStreamTrack> > MediaStreamTrackVector;
+typedef WillBeHeapVector<RefPtrWillBeMember<MediaStreamTrack> > MediaStreamTrackVector;
 
 } // namespace WebCore