Oilpan: Move MediaStreamSource, MediaStreamComponent and MediaStreamDescriptor to oilpan's heap

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 e5ac85885359642eeb6a4d23ed6b17dc052aac61..67c7d99e6b8370e923d3025c9a13fd14080a9be0 100644
--- a/Source/modules/mediastream/MediaStreamTrack.h
+++ b/Source/modules/mediastream/MediaStreamTrack.h
@@ -47,7 +47,7 @@ class MediaStreamTrack FINAL
     , public MediaStreamSource::Observer {
     DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollectedWillBeGarbageCollectedFinalized<MediaStreamTrack>);
     DEFINE_WRAPPERTYPEINFO();
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MediaStreamTrack);
+    USING_GARBAGE_COLLECTED_MIXIN(MediaStreamTrack);
 public:
     static MediaStreamTrack* create(ExecutionContext*, MediaStreamComponent*);
     virtual ~MediaStreamTrack();
@@ -100,7 +100,7 @@ private:
     HeapHashSet<Member<MediaStream> > m_registeredMediaStreams;
     bool m_isIteratingRegisteredMediaStreams;
     bool m_stopped;
-    RefPtr<MediaStreamComponent> m_component;
+    Member<MediaStreamComponent> m_component;
 };
 
 typedef HeapVector<Member<MediaStreamTrack> > MediaStreamTrackVector;