Smaller vtbls in RenderObject

Source/core/rendering/RenderTableRow.h

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2009, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 81 matching lines @@
     const BorderValue& borderAdjoiningEndCell(const RenderTableCell*) const;
 
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
 
 private:
     virtual RenderObjectChildList* virtualChildren() override { return children(); }
     virtual const RenderObjectChildList* virtualChildren() const override { return children(); }
 
     virtual const char* renderName() const override { return (isAnonymous() || isPseudoElement()) ? "RenderTableRow (anonymous)" : "RenderTableRow"; }
 
-    virtual bool isTableRow() const override { return true; }
+    virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectTableRow || RenderBox::isOfType(type); }
 
     virtual void willBeRemovedFromTree() override;
 
     virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0) override;
     virtual void layout() override;
 
     virtual LayerType layerTypeRequired() const override
     {
         if (hasTransform() || hasHiddenBackface() || hasClipPath() || createsGroup() || style()->shouldCompositeForCurrentAnimations())
             return NormalLayer;
@@ skipping 37 matching lines @@
 
 inline RenderTableRow* RenderTableSection::lastRow() const
 {
     ASSERT(children() == virtualChildren());
     return toRenderTableRow(children()->lastChild());
 }
 
 } // namespace blink
 
 #endif // RenderTableRow_h