Move mediastream module to oilpan transition types

Source/modules/mediastream/RTCIceCandidate.h

Index: Source/modules/mediastream/RTCIceCandidate.h
diff --git a/Source/modules/mediastream/RTCIceCandidate.h b/Source/modules/mediastream/RTCIceCandidate.h
index 9d934055751354a3e08d5ddff96ce530bd2bf155..ac69d09cf6aab2aba0c48711eb66a5532b710f0c 100644
--- a/Source/modules/mediastream/RTCIceCandidate.h
+++ b/Source/modules/mediastream/RTCIceCandidate.h
@@ -43,10 +43,11 @@ namespace WebCore {
 class Dictionary;
 class ExceptionState;
 
-class RTCIceCandidate FINAL : public RefCounted<RTCIceCandidate>, public ScriptWrappable {
+class RTCIceCandidate FINAL : public RefCountedWillBeGarbageCollectedFinalized<RTCIceCandidate>, public ScriptWrappable {
+    DECLARE_GC_INFO;
 public:
-    static PassRefPtr<RTCIceCandidate> create(const Dictionary&, ExceptionState&);
-    static PassRefPtr<RTCIceCandidate> create(blink::WebRTCICECandidate);
+    static PassRefPtrWillBeRawPtr<RTCIceCandidate> create(const Dictionary&, ExceptionState&);
+    static PassRefPtrWillBeRawPtr<RTCIceCandidate> create(blink::WebRTCICECandidate);
 
     String candidate() const;
     String sdpMid() const;
@@ -54,6 +55,8 @@ public:
 
     blink::WebRTCICECandidate webCandidate();
 
+    void trace(Visitor*) { }
+
 private:
     explicit RTCIceCandidate(blink::WebRTCICECandidate);