Oilpan: add transition types to track interface objects.

Source/core/html/track/InbandTextTrack.h

Index: Source/core/html/track/InbandTextTrack.h
diff --git a/Source/core/html/track/InbandTextTrack.h b/Source/core/html/track/InbandTextTrack.h
index 268340ab194118a0208fc9b21b0a5937eed7ca0b..47d39f3955597fac53d0fc064b0ea8937fa2aa5e 100644
--- a/Source/core/html/track/InbandTextTrack.h
+++ b/Source/core/html/track/InbandTextTrack.h
@@ -27,6 +27,7 @@
 #define InbandTextTrack_h
 
 #include "core/html/track/TextTrack.h"
+#include "platform/heap/Handle.h"
 #include "public/platform/WebInbandTextTrackClient.h"
 #include "wtf/RefPtr.h"
 
@@ -43,7 +44,7 @@ class TextTrackCue;
 
 class InbandTextTrack FINAL : public TextTrack, public blink::WebInbandTextTrackClient {
 public:
-    static PassRefPtr<InbandTextTrack> create(Document&, blink::WebInbandTextTrack*);
+    static PassRefPtrWillBeRawPtr<InbandTextTrack> create(Document&, blink::WebInbandTextTrack*);
     virtual ~InbandTextTrack();
 
     size_t inbandTrackIndex();