Oilpan: Change adoptRef() in the Event hierarchy to adoptRefWillBeRefCountedGarbageCollected()

Source/core/events/Event.h

Index: Source/core/events/Event.h
diff --git a/Source/core/events/Event.h b/Source/core/events/Event.h
index 001e298e9171aa6aee7aaf0e3c0053e40a7b0c6a..19344d8d56c06d8d26a4578a54f146b7ad0fcfc9 100644
--- a/Source/core/events/Event.h
+++ b/Source/core/events/Event.h
@@ -86,17 +86,17 @@ public:
     {
         return adoptRefWillBeRefCountedGarbageCollected(new Event(type, false, false));
     }
-    static PassRefPtr<Event> createCancelable(const AtomicString& type)
+    static PassRefPtrWillBeRawPtr<Event> createCancelable(const AtomicString& type)
     {
-        return adoptRef(new Event(type, false, true));
+        return adoptRefWillBeRefCountedGarbageCollected(new Event(type, false, true));
     }
-    static PassRefPtr<Event> createBubble(const AtomicString& type)
+    static PassRefPtrWillBeRawPtr<Event> createBubble(const AtomicString& type)
     {
-        return adoptRef(new Event(type, true, false));
+        return adoptRefWillBeRefCountedGarbageCollected(new Event(type, true, false));
     }
-    static PassRefPtr<Event> createCancelableBubble(const AtomicString& type)
+    static PassRefPtrWillBeRawPtr<Event> createCancelableBubble(const AtomicString& type)
     {
-        return adoptRef(new Event(type, true, true));
+        return adoptRefWillBeRefCountedGarbageCollected(new Event(type, true, true));
     }
 
     static PassRefPtrWillBeRawPtr<Event> create(const AtomicString& type, const EventInit& initializer)