Smaller vtbls in RenderObject

Source/core/rendering/RenderMeter.h

 /*
  * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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 23 matching lines @@
     virtual ~RenderMeter();
 
     HTMLMeterElement* meterElement() const;
     virtual void updateFromElement() OVERRIDE;
 
 private:
     virtual void updateLogicalWidth() OVERRIDE;
     virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const OVERRIDE;
 
     virtual const char* renderName() const OVERRIDE { return "RenderMeter"; }
-    virtual bool isMeter() const OVERRIDE { return true; }
+    virtual bool isOfType(RenderObjectType type) const OVERRIDE { return type == RenderObjectMeter || RenderBlockFlow::isOfType(type); }
 
     double valueRatio() const;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderMeter, isMeter());
 
 } // namespace blink
 
 #endif // RenderMeter_h