Smaller vtbls in RenderObject

Source/core/rendering/svg/RenderSVGHiddenContainer.h

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 19 matching lines @@
 // <defs>, <linearGradient>, <radialGradient> are all good examples
 class RenderSVGHiddenContainer : public RenderSVGContainer {
 public:
     explicit RenderSVGHiddenContainer(SVGElement*);
 
     virtual const char* renderName() const override { return "RenderSVGHiddenContainer"; }
 
 protected:
     virtual void layout() override;
 
+    virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectSVGHiddenContainer || RenderSVGContainer::isOfType(type); }
+
 private:
-    virtual bool isSVGHiddenContainer() const override final { return true; }
-
     virtual void paint(PaintInfo&, const LayoutPoint&) override final;
-
     virtual LayoutRect clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject*, const PaintInvalidationState* = 0) const override final { return LayoutRect(); }
     virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override final;
 
     virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction) override final;
 };
 }
 
 #endif // RenderSVGHiddenContainer_h