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

Source/modules/indexeddb/IDBTransaction.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 344 matching lines @@
     m_state = Finished;
 
     // Break reference cycles.
     for (IDBObjectStoreMap::iterator it = m_objectStoreMap.begin(); it != m_objectStoreMap.end(); ++it)
         it->value->transactionFinished();
     m_objectStoreMap.clear();
     for (IDBObjectStoreSet::iterator it = m_deletedObjectStores.begin(); it != m_deletedObjectStores.end(); ++it)
         (*it)->transactionFinished();
     m_deletedObjectStores.clear();
 
-    Vector<RefPtr<EventTarget> > targets;
+    WillBeHeapVector<RefPtrWillBeMember<EventTarget> > targets;
     targets.append(this);
     targets.append(db());
 
     // FIXME: When we allow custom event dispatching, this will probably need to change.
     ASSERT(event->type() == EventTypeNames::complete || event->type() == EventTypeNames::abort);
     bool returnValue = IDBEventDispatcher::dispatch(event.get(), targets);
     // FIXME: Try to construct a test where |this| outlives openDBRequest and we
     // get a crash.
     if (m_openDBRequest) {
         ASSERT(isVersionChange());
@@ skipping 23 matching lines @@
     event->setTarget(this);
     eventQueue->enqueueEvent(event);
 }
 
 blink::WebIDBDatabase* IDBTransaction::backendDB() const
 {
     return m_database->backend();
 }
 
 } // namespace WebCore