Pass a struct to ContainerNode::childrenChanged() instead of separate arguments

Source/core/svg/SVGFilterPrimitiveStandardAttributes.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 37 matching lines @@
     SVGAnimatedLength* width() const { return m_width.get(); }
     SVGAnimatedLength* height() const { return m_height.get(); }
     SVGAnimatedString* result() const { return m_result.get(); }
 
 protected:
     SVGFilterPrimitiveStandardAttributes(const QualifiedName&, Document&);
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
-    virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0) OVERRIDE;
+    virtual void childrenChanged(const ChildrenChange&) OVERRIDE;
 
     inline void invalidate()
     {
         if (RenderObject* primitiveRenderer = renderer())
             RenderSVGResource::markForLayoutAndParentResourceInvalidation(primitiveRenderer);
     }
 
     void primitiveAttributeChanged(const QualifiedName&);
 
 private:
     virtual bool isFilterEffect() const OVERRIDE FINAL { return true; }
 
     virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE FINAL;
     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE FINAL;
 
     RefPtr<SVGAnimatedLength> m_x;
     RefPtr<SVGAnimatedLength> m_y;
     RefPtr<SVGAnimatedLength> m_width;
     RefPtr<SVGAnimatedLength> m_height;
     RefPtr<SVGAnimatedString> m_result;
 };
 
 void invalidateFilterPrimitiveParent(SVGElement*);
 
 } // namespace WebCore
 
 #endif