Oilpan: Replace most of RefPtrs for Event objects with oilpan's transition types

Source/core/events/EventDispatchMediator.cpp

Index: Source/core/events/EventDispatchMediator.cpp
diff --git a/Source/core/events/EventDispatchMediator.cpp b/Source/core/events/EventDispatchMediator.cpp
index 032d0b8f9ad50ca1950fd638d4fc92648fd6d85c..0ee176245b9a4e5896ae5361ede24e706ada09bd 100644
--- a/Source/core/events/EventDispatchMediator.cpp
+++ b/Source/core/events/EventDispatchMediator.cpp
@@ -36,12 +36,12 @@
 
 namespace WebCore {
 
-PassRefPtr<EventDispatchMediator> EventDispatchMediator::create(PassRefPtr<Event> event)
+PassRefPtr<EventDispatchMediator> EventDispatchMediator::create(PassRefPtrWillBeRawPtr<Event> event)
 {
     return adoptRef(new EventDispatchMediator(event));
 }
 
-EventDispatchMediator::EventDispatchMediator(PassRefPtr<Event> event)
+EventDispatchMediator::EventDispatchMediator(PassRefPtrWillBeRawPtr<Event> event)
     : m_event(event)
 {
 }