Remove StackStats.

Source/core/rendering/svg/RenderSVGRoot.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007, 2008, 2009 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) Research In Motion Limited 2011. 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
@@ skipping 177 matching lines @@
     // SVG embedded through object/embed/iframe.
     if (isEmbeddedThroughFrameContainingSVGDocument())
         return document()->frame()->ownerRenderer()->availableLogicalHeight(IncludeMarginBorderPadding);
 
     // SVG embedded via SVGImage (background-image/border-image/etc) / Inline SVG.
     return RenderReplaced::computeReplacedLogicalHeight();
 }
 
 void RenderSVGRoot::layout()
 {
-    StackStats::LayoutCheckPoint layoutCheckPoint;
     ASSERT(needsLayout());
 
     m_resourcesNeedingToInvalidateClients.clear();
 
     // Arbitrary affine transforms are incompatible with LayoutState.
     LayoutStateDisabler layoutStateDisabler(view());
 
     bool needsLayout = selfNeedsLayout();
     LayoutRepainter repainter(*this, checkForRepaintDuringLayout() && needsLayout);
 
@@ skipping 271 matching lines @@
 {
     RenderObject* svgRoot = resource->parent();
     while (svgRoot && !svgRoot->isSVGRoot())
         svgRoot = svgRoot->parent();
     if (!svgRoot)
         return;
     toRenderSVGRoot(svgRoot)->m_resourcesNeedingToInvalidateClients.add(resource);
 }
 
 }