Oilpan: Prepare to move EventQueue and its subclasses to Oilpan heap.

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 14 matching lines @@
 
 #include "config.h"
 
 #include "core/events/GenericEventQueue.h"
 
 #include "core/events/Event.h"
 #include "platform/TraceEvent.h"
 
 namespace WebCore {
 
-PassOwnPtr<GenericEventQueue> GenericEventQueue::create(EventTarget* owner)
+PassOwnPtrWillBeRawPtr<GenericEventQueue> GenericEventQueue::create(EventTarget* owner)
 {
-    return adoptPtr(new GenericEventQueue(owner));
+    return adoptPtrWillBeNoop(new GenericEventQueue(owner));
 }
 
 GenericEventQueue::GenericEventQueue(EventTarget* owner)
     : m_owner(owner)
     , m_timer(this, &GenericEventQueue::timerFired)
     , m_isClosed(false)
 {
 }
 
 GenericEventQueue::~GenericEventQueue()
 {
 }
 
+void GenericEventQueue::trace(Visitor* visitor)
+{
+    visitor->trace(m_owner);
+    visitor->trace(m_pendingEvents);
+    EventQueue::trace(visitor);
+}
+
 bool GenericEventQueue::enqueueEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     if (m_isClosed)
         return false;
 
     if (event->target() == m_owner)
         event->setTarget(nullptr);
 
     TRACE_EVENT_ASYNC_BEGIN1("event", "GenericEventQueue:enqueueEvent", event.get(), "type", event->type().ascii());
     m_pendingEvents.append(event);
@@ skipping 20 matching lines @@
 }
 
 void GenericEventQueue::timerFired(Timer<GenericEventQueue>*)
 {
     ASSERT(!m_timer.isActive());
     ASSERT(!m_pendingEvents.isEmpty());
 
     WillBeHeapVector<RefPtrWillBeMember<Event> > pendingEvents;
     m_pendingEvents.swap(pendingEvents);
 
-    RefPtrWillBeRawPtr<EventTarget> protect(m_owner);
+    RefPtrWillBeRawPtr<EventTarget> protect(m_owner.get());
     for (size_t i = 0; i < pendingEvents.size(); ++i) {
         Event* event = pendingEvents[i].get();
-        EventTarget* target = event->target() ? event->target() : m_owner;
+        EventTarget* target = event->target() ? event->target() : m_owner.get();
         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);
     }
 }
 
 void GenericEventQueue::close()
 {
     m_isClosed = true;
@@ skipping 10 matching lines @@
     }
     m_pendingEvents.clear();
 }
 
 bool GenericEventQueue::hasPendingEvents() const
 {
     return m_pendingEvents.size();
 }
 
 }