Ensure proper finalization of garbage-collected types.

Source/core/css/CSSBasicShapes.h

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. 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.
@@ skipping 21 matching lines @@
 
 #include "core/css/CSSPrimitiveValue.h"
 #include "platform/graphics/WindRule.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class CSSBasicShape : public RefCountedWillBeGarbageCollected<CSSBasicShape> {
+    DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(CSSBasicShape);
 public:
     enum Type {
         CSSBasicShapeRectangleType,
         CSSDeprecatedBasicShapeCircleType,
         CSSDeprecatedBasicShapeEllipseType,
         CSSBasicShapeEllipseType,
         CSSBasicShapePolygonType,
         CSSBasicShapeInsetRectangleType,
         CSSBasicShapeCircleType,
         CSSBasicShapeInsetType
     };
 
     virtual Type type() const = 0;
     virtual String cssText() const = 0;
     virtual bool equals(const CSSBasicShape&) const = 0;
 
     CSSPrimitiveValue* layoutBox() const { return m_layoutBox.get(); }
     void setLayoutBox(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> layoutBox) { m_layoutBox = layoutBox; }
 
     virtual void trace(Visitor* visitor) { visitor->trace(m_layoutBox); }
 
-public:
-    virtual ~CSSBasicShape() { }
-
 protected:
     CSSBasicShape() { }
     RefPtrWillBeMember<CSSPrimitiveValue> m_layoutBox;
 };
 
 class CSSBasicShapeRectangle FINAL : public CSSBasicShape {
 public:
     static PassRefPtrWillBeRawPtr<CSSBasicShapeRectangle> create() { return adoptRefWillBeNoop(new CSSBasicShapeRectangle); }
 
     CSSPrimitiveValue* x() const { return m_x.get(); }
@@ skipping 270 matching lines @@
 
     RefPtrWillBeMember<CSSPrimitiveValue> m_topLeftRadius;
     RefPtrWillBeMember<CSSPrimitiveValue> m_topRightRadius;
     RefPtrWillBeMember<CSSPrimitiveValue> m_bottomRightRadius;
     RefPtrWillBeMember<CSSPrimitiveValue> m_bottomLeftRadius;
 };
 
 } // namespace WebCore
 
 #endif // CSSBasicShapes_h