[Oilpan] Move ScrollAnimators onto oilpan heap

third_party/WebKit/Source/platform/mac/ScrollAnimatorMac.h

 /*
  * Copyright (C) 2010, 2011 Apple 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 12 matching lines @@
  * THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ScrollAnimatorMac_h
 #define ScrollAnimatorMac_h
 
 #include "platform/Timer.h"
 #include "platform/geometry/FloatPoint.h"
 #include "platform/geometry/FloatSize.h"
 #include "platform/geometry/IntRect.h"
+#include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollAnimatorBase.h"
 #include "wtf/RetainPtr.h"
 
 OBJC_CLASS WebScrollAnimationHelperDelegate;
 OBJC_CLASS WebScrollbarPainterControllerDelegate;
 OBJC_CLASS WebScrollbarPainterDelegate;
 
 typedef id ScrollbarPainterController;
 
 namespace blink {
 
 class Scrollbar;
 
 class PLATFORM_EXPORT ScrollAnimatorMac : public ScrollAnimatorBase {
-
+    WILL_BE_USING_PRE_FINALIZER(ScrollAnimatorMac, dispose);
 public:
     ScrollAnimatorMac(ScrollableArea*);
     ~ScrollAnimatorMac() override;
 
+    void dispose() override;
+
     void immediateScrollToPointForScrollAnimation(const FloatPoint& newPosition);
     bool haveScrolledSincePageLoad() const { return m_haveScrolledSincePageLoad; }
 
     void updateScrollerStyle();
 
     bool scrollbarPaintTimerIsActive() const;
     void startScrollbarPaintTimer();
     void stopScrollbarPaintTimer();
 
     void sendContentAreaScrolledSoon(const FloatSize& scrollDelta);
 
     void setVisibleScrollerThumbRect(const IntRect&);
 
     static bool canUseCoordinatedScrollbar();
 
+    DEFINE_INLINE_VIRTUAL_TRACE()
+    {
+        ScrollAnimatorBase::trace(visitor);
+    }
+
 private:
     RetainPtr<id> m_scrollAnimationHelper;
     RetainPtr<WebScrollAnimationHelperDelegate> m_scrollAnimationHelperDelegate;
 
     RetainPtr<ScrollbarPainterController> m_scrollbarPainterController;
     RetainPtr<WebScrollbarPainterControllerDelegate> m_scrollbarPainterControllerDelegate;
     RetainPtr<WebScrollbarPainterDelegate> m_horizontalScrollbarPainterDelegate;
     RetainPtr<WebScrollbarPainterDelegate> m_verticalScrollbarPainterDelegate;
 
     void initialScrollbarPaintTimerFired(Timer<ScrollAnimatorMac>*);
@@ skipping 44 matching lines @@
     void immediateScrollTo(const FloatPoint&);
 
     bool m_haveScrolledSincePageLoad;
     bool m_needsScrollerStyleUpdate;
     IntRect m_visibleScrollerThumbRect;
 };
 
 } // namespace blink
 
 #endif // ScrollAnimatorMac_h