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

Source/core/events/DOMWindowEventQueue.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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 16 matching lines @@
 #include "config.h"
 #include "core/events/DOMWindowEventQueue.h"
 
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/frame/DOMWindow.h"
 #include "core/frame/SuspendableTimer.h"
 
 namespace WebCore {
 
-class DOMWindowEventQueueTimer : public SuspendableTimer {
+class DOMWindowEventQueueTimer : public NoBaseWillBeGarbageCollectedFinalized<DOMWindowEventQueueTimer>, public SuspendableTimer {
     WTF_MAKE_NONCOPYABLE(DOMWindowEventQueueTimer);
 public:
     DOMWindowEventQueueTimer(DOMWindowEventQueue* eventQueue, ExecutionContext* context)
         : SuspendableTimer(context)
         , m_eventQueue(eventQueue) { }
+    void trace(Visitor* visitor) { visitor->trace(m_eventQueue); }
 
 private:
     virtual void fired() { m_eventQueue->pendingEventTimerFired(); }
-    DOMWindowEventQueue* m_eventQueue;
+
+    RawPtrWillBeMember<DOMWindowEventQueue> m_eventQueue;
 };
 
-PassRefPtr<DOMWindowEventQueue> DOMWindowEventQueue::create(ExecutionContext* context)
+PassRefPtrWillBeRawPtr<DOMWindowEventQueue> DOMWindowEventQueue::create(ExecutionContext* context)
 {
-    return adoptRef(new DOMWindowEventQueue(context));
+    return adoptRefWillBeNoop(new DOMWindowEventQueue(context));
 }
 
 DOMWindowEventQueue::DOMWindowEventQueue(ExecutionContext* context)
-    : m_pendingEventTimer(adoptPtr(new DOMWindowEventQueueTimer(this, context)))
+    : m_pendingEventTimer(adoptPtrWillBeNoop(new DOMWindowEventQueueTimer(this, context)))
     , m_isClosed(false)
 {
     m_pendingEventTimer->suspendIfNeeded();
 }
 
 DOMWindowEventQueue::~DOMWindowEventQueue()
 {
 }
 
+void DOMWindowEventQueue::trace(Visitor* visitor)
+{
+    visitor->trace(m_pendingEventTimer);
+    visitor->trace(m_queuedEvents);
+    EventQueue::trace(visitor);
+}
+
 bool DOMWindowEventQueue::enqueueEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     if (m_isClosed)
         return false;
 
     ASSERT(event->target());
     bool wasAdded = m_queuedEvents.add(event).isNewEntry;
     ASSERT_UNUSED(wasAdded, wasAdded); // It should not have already been in the list.
 
     if (!m_pendingEventTimer->isActive())
         m_pendingEventTimer->startOneShot(0, FROM_HERE);
 
     return true;
 }
 
 bool DOMWindowEventQueue::cancelEvent(Event* event)
 {
-    ListHashSet<RefPtrWillBePersistent<Event>, 16>::iterator it = m_queuedEvents.find(event);
+    WillBeHeapListHashSet<RefPtrWillBeMember<Event>, 16>::iterator it = m_queuedEvents.find(event);
     bool found = it != m_queuedEvents.end();
     if (found)
         m_queuedEvents.remove(it);
     if (m_queuedEvents.isEmpty())
         m_pendingEventTimer->stop();
     return found;
 }
 
 void DOMWindowEventQueue::close()
 {
     m_isClosed = true;
     m_pendingEventTimer->stop();
     m_queuedEvents.clear();
 }
 
 void DOMWindowEventQueue::pendingEventTimerFired()
 {
     ASSERT(!m_pendingEventTimer->isActive());
     ASSERT(!m_queuedEvents.isEmpty());
 
     // Insert a marker for where we should stop.
     ASSERT(!m_queuedEvents.contains(nullptr));
     bool wasAdded = m_queuedEvents.add(nullptr).isNewEntry;
     ASSERT_UNUSED(wasAdded, wasAdded); // It should not have already been in the list.
 
-    RefPtr<DOMWindowEventQueue> protector(this);
+    RefPtrWillBeRawPtr<DOMWindowEventQueue> protector(this);
 
     while (!m_queuedEvents.isEmpty()) {
-        ListHashSet<RefPtrWillBePersistent<Event>, 16>::iterator iter = m_queuedEvents.begin();
+        WillBeHeapListHashSet<RefPtrWillBeMember<Event>, 16>::iterator iter = m_queuedEvents.begin();
         RefPtrWillBeRawPtr<Event> event = *iter;
         m_queuedEvents.remove(iter);
         if (!event)
             break;
         dispatchEvent(event.get());
     }
 }
 
 void DOMWindowEventQueue::dispatchEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     EventTarget* eventTarget = event->target();
     if (eventTarget->toDOMWindow())
         eventTarget->toDOMWindow()->dispatchEvent(event, nullptr);
     else
         eventTarget->dispatchEvent(event);
 }
 
 }