Revert the merge. Mac build is mysteriously broken.

third_party/WebKit/WebCore/rendering/RenderSVGGradientStop.h

 /*
  * This file is part of the WebKit project.
  *
  * 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.
  *
@@ skipping 23 matching lines @@
     // This class exists mostly so we can hear about gradient stop style changes
     class RenderSVGGradientStop : public RenderObject {
     public:
         RenderSVGGradientStop(SVGStopElement*);
         virtual ~RenderSVGGradientStop();
 
         virtual const char* renderName() const { return "RenderSVGGradientStop"; }
 
         virtual void layout();
 
-        // This override is needed to prevent an assert on <svg><stop /></svg>
-        // RenderObject's default impl asserts.
+        // This override is needed to prevent crashing on <svg><stop /></svg>
+        // RenderObject's default impl asks the parent Object and RenderSVGRoot
+        // asks all child RenderObjects for overflow rects, thus infinite loop.
         // https://bugs.webkit.org/show_bug.cgi?id=20400
-        virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject*) { return IntRect(); }
+        virtual IntRect clippedOverflowRectForRepaint(RenderBox*) { return IntRect(); }
     
     protected:
         virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
 
     private:
         SVGGradientElement* gradientElement() const;
     };
 }
 
 #endif // ENABLE(SVG)
 #endif // RenderSVGGradientStop_h