Smaller vtbls in RenderObject

Source/core/rendering/svg/RenderSVGBlock.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  *
  * 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 31 matching lines @@
 
     virtual LayerType layerTypeRequired() const override final { return NoLayer; }
 
     virtual void invalidateTreeIfNeeded(const PaintInvalidationState&) override;
 
 protected:
     virtual void willBeDestroyed() override;
 
     AffineTransform m_localTransform;
 
+    virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectSVG || RenderBlockFlow::isOfType(type); }
 private:
     virtual void updateFromStyle() override final;
 
-    virtual bool isSVG() const override final { return true; }
-
     virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint& accumulatedOffset) const override final;
 
     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override final;
 
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
 };
 
 }
 #endif