Smaller vtbls in RenderObject

Source/core/rendering/RenderCounter.h

 /*
  * Copyright (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007, 2008, 2009 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
  * 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 30 matching lines @@
     static void rendererRemovedFromTree(RenderObject*);
     static void rendererStyleChanged(RenderObject&, const RenderStyle* oldStyle, const RenderStyle* newStyle);
 
     void updateCounter();
 
 protected:
     virtual void willBeDestroyed() override;
 
 private:
     virtual const char* renderName() const override;
-    virtual bool isCounter() const override;
+    virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectCounter || RenderText::isOfType(type); }
     virtual PassRefPtr<StringImpl> originalText() const override;
 
     // Removes the reference to the CounterNode associated with this renderer.
     // This is used to cause a counter display update when the CounterNode tree changes.
     void invalidate();
 
     CounterContent m_counter;
     CounterNode* m_counterNode;
     RenderCounter* m_nextForSameCounter;
     friend class CounterNode;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderCounter, isCounter());
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showCounterRendererTree(const blink::RenderObject*, const char* counterName = 0);
 #endif
 
 #endif // RenderCounter_h