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

Source/modules/indexeddb/IDBTransaction.cpp

Index: Source/modules/indexeddb/IDBTransaction.cpp
diff --git a/Source/modules/indexeddb/IDBTransaction.cpp b/Source/modules/indexeddb/IDBTransaction.cpp
index 19301176e90ae79ad9c63fda5be9c8f86dfaefd8..76f90370eb024ade2cce3e802db0fad394e572da 100644
--- a/Source/modules/indexeddb/IDBTransaction.cpp
+++ b/Source/modules/indexeddb/IDBTransaction.cpp
@@ -338,7 +338,7 @@ ExecutionContext* IDBTransaction::executionContext() const
     return ActiveDOMObject::executionContext();
 }
 
-bool IDBTransaction::dispatchEvent(PassRefPtr<Event> event)
+bool IDBTransaction::dispatchEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     IDB_TRACE("IDBTransaction::dispatchEvent");
     if (m_contextStopped || !executionContext()) {
@@ -386,7 +386,7 @@ void IDBTransaction::stop()
     abort(IGNORE_EXCEPTION);
 }
 
-void IDBTransaction::enqueueEvent(PassRefPtr<Event> event)
+void IDBTransaction::enqueueEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     ASSERT_WITH_MESSAGE(m_state != Finished, "A finished transaction tried to enqueue an event of type %s.", event->type().utf8().data());
     if (m_contextStopped || !executionContext())