bindings: Adds virtual ScriptWrappable::wrap method.

Source/core/html/track/VideoTrack.h

Index: Source/core/html/track/VideoTrack.h
diff --git a/Source/core/html/track/VideoTrack.h b/Source/core/html/track/VideoTrack.h
index d2280a90562fd78a566719495e39e0c6b61236fe..168d3c358fac06372b8b4c929b6262c55d00f669 100644
--- a/Source/core/html/track/VideoTrack.h
+++ b/Source/core/html/track/VideoTrack.h
@@ -11,6 +11,7 @@
 namespace blink {
 
 class VideoTrack FINAL : public TrackBase, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<VideoTrack> create(const String& id, const AtomicString& kind, const AtomicString& label, const AtomicString& language, bool selected)
     {
@@ -45,6 +46,6 @@ private:
 
 DEFINE_TRACK_TYPE_CASTS(VideoTrack, TrackBase::VideoTrack);
 
-}
+} // namespace blink
 
-#endif
+#endif // VideoTrack_h