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

Source/core/events/GenericEventQueue.cpp

 /*
  * Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
  *
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 70 matching lines @@
 }
 
 void GenericEventQueue::timerFired(Timer<GenericEventQueue>*)
 {
     ASSERT(!m_timer.isActive());
     ASSERT(!m_pendingEvents.isEmpty());
 
     WillBeHeapVector<RefPtrWillBeMember<Event> > pendingEvents;
     m_pendingEvents.swap(pendingEvents);
 
-    RefPtr<EventTarget> protect(m_owner);
+    RefPtrWillBeRawPtr<EventTarget> protect(m_owner);
     for (size_t i = 0; i < pendingEvents.size(); ++i) {
         Event* event = pendingEvents[i].get();
         EventTarget* target = event->target() ? event->target() : m_owner;
         CString type(event->type().ascii());
         TRACE_EVENT_ASYNC_STEP_INTO1("event", "GenericEventQueue:enqueueEvent", event, "dispatch", "type", type);
         target->dispatchEvent(pendingEvents[i].release());
         TRACE_EVENT_ASYNC_END1("event", "GenericEventQueue:enqueueEvent", event, "type", type);
     }
 }
 
@@ skipping 13 matching lines @@
     }
     m_pendingEvents.clear();
 }
 
 bool GenericEventQueue::hasPendingEvents() const
 {
     return m_pendingEvents.size();
 }
 
 }