Move mediastream module to oilpan transition types

Source/platform/mediastream/MediaStreamTrackSourcesRequest.h

Index: Source/platform/mediastream/MediaStreamTrackSourcesRequest.h
diff --git a/Source/platform/mediastream/MediaStreamTrackSourcesRequest.h b/Source/platform/mediastream/MediaStreamTrackSourcesRequest.h
index 61a0536ccced2197002e8498bfd48cad65ec8387..d4dac722335a75a567dd0ceaedace4fa2a0b9107 100644
--- a/Source/platform/mediastream/MediaStreamTrackSourcesRequest.h
+++ b/Source/platform/mediastream/MediaStreamTrackSourcesRequest.h
@@ -26,6 +26,7 @@
 #ifndef MediaStreamTrackSourcesRequest_h
 #define MediaStreamTrackSourcesRequest_h
 
+#include "platform/heap/Handle.h"
 #include "public/platform/WebVector.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
@@ -38,7 +39,7 @@ class WebSourceInfo;
 
 namespace WebCore {
 
-class MediaStreamTrackSourcesRequest : public RefCounted<MediaStreamTrackSourcesRequest> {
+class MediaStreamTrackSourcesRequest : public RefCountedWillBeGarbageCollectedFinalized<MediaStreamTrackSourcesRequest> {
 public:
     class ExtraData {
     public:
@@ -53,6 +54,8 @@ public:
     ExtraData* extraData() const { return m_extraData.get(); }
     void setExtraData(PassOwnPtr<ExtraData> extraData) { m_extraData = extraData; }
 
+    virtual void trace(Visitor*) { }
+
 protected:
     MediaStreamTrackSourcesRequest() { }