Revert the merge. Mac build is mysteriously broken.

third_party/WebKit/WebCore/rendering/RenderSVGGradientStop.h

Index: third_party/WebKit/WebCore/rendering/RenderSVGGradientStop.h
===================================================================
--- third_party/WebKit/WebCore/rendering/RenderSVGGradientStop.h	(revision 9383)
+++ third_party/WebKit/WebCore/rendering/RenderSVGGradientStop.h	(working copy)
@@ -41,10 +41,11 @@
 
         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);