Use C++11 range-based loop for core/layout

Source/core/layout/svg/LayoutSVGResourceGradient.cpp

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. 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.
@@ skipping 96 matching lines @@
     if (!child->isSVGResourceContainer())
         return false;
 
     return toLayoutSVGResourceContainer(child)->isSVGPaintServer();
 }
 
 void LayoutSVGResourceGradient::addStops(GradientData* gradientData, const Vector<Gradient::ColorStop>& stops) const
 {
     ASSERT(gradientData->gradient);
 
-    const Vector<Gradient::ColorStop>::const_iterator end = stops.end();
-    for (Vector<Gradient::ColorStop>::const_iterator it = stops.begin(); it != end; ++it)
-        gradientData->gradient->addColorStop(*it);
+    for (const auto& stop : stops)
+        gradientData->gradient->addColorStop(stop);
 }
 
 GradientSpreadMethod LayoutSVGResourceGradient::platformSpreadMethodFromSVGType(SVGSpreadMethodType method) const
 {
     switch (method) {
     case SVGSpreadMethodUnknown:
     case SVGSpreadMethodPad:
         return SpreadMethodPad;
     case SVGSpreadMethodReflect:
         return SpreadMethodReflect;
     case SVGSpreadMethodRepeat:
         return SpreadMethodRepeat;
     }
 
     ASSERT_NOT_REACHED();
     return SpreadMethodPad;
 }
 
 }