Oilpan: Prepare to move EventDispatchMediator to Oilpan heap.

Source/core/events/TouchEvent.cpp

Index: Source/core/events/TouchEvent.cpp
diff --git a/Source/core/events/TouchEvent.cpp b/Source/core/events/TouchEvent.cpp
index 3464206e21f400175a27a5867a84b07c4647f322..d65bfe114787e13ba945c2c2d544648a2e33ebaf 100644
--- a/Source/core/events/TouchEvent.cpp
+++ b/Source/core/events/TouchEvent.cpp
@@ -110,9 +110,9 @@ void TouchEvent::trace(Visitor* visitor)
     UIEventWithKeyState::trace(visitor);
 }
 
-PassRefPtr<TouchEventDispatchMediator> TouchEventDispatchMediator::create(PassRefPtrWillBeRawPtr<TouchEvent> touchEvent)
+PassRefPtrWillBeRawPtr<TouchEventDispatchMediator> TouchEventDispatchMediator::create(PassRefPtrWillBeRawPtr<TouchEvent> touchEvent)
 {
-    return adoptRef(new TouchEventDispatchMediator(touchEvent));
+    return adoptRefWillBeNoop(new TouchEventDispatchMediator(touchEvent));
 }
 
 TouchEventDispatchMediator::TouchEventDispatchMediator(PassRefPtrWillBeRawPtr<TouchEvent> touchEvent)