Oilpan: Remove ref counting from EventTarget and all uses of Pass/RefPtr<EventTarget>.

Source/modules/indexeddb/IDBEventDispatcher.cpp

Index: Source/modules/indexeddb/IDBEventDispatcher.cpp
diff --git a/Source/modules/indexeddb/IDBEventDispatcher.cpp b/Source/modules/indexeddb/IDBEventDispatcher.cpp
index e80018afdf3a11df0b71a1adb8a4bda84055777b..7cee2ebfac997fd729327649647e152723edde1c 100644
--- a/Source/modules/indexeddb/IDBEventDispatcher.cpp
+++ b/Source/modules/indexeddb/IDBEventDispatcher.cpp
@@ -34,7 +34,7 @@
 
 namespace WebCore {
 
-bool IDBEventDispatcher::dispatch(Event* event, Vector<RefPtr<EventTarget> >& eventTargets)
+bool IDBEventDispatcher::dispatch(Event* event, WillBeHeapVector<RefPtrWillBeMember<EventTarget> >& eventTargets)
 {
     size_t size = eventTargets.size();
     ASSERT(size);