Make RenderObject::style() return a const object

Source/core/rendering/svg/RenderSVGInline.cpp

 /*
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  * 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 13 matching lines @@
 #include "core/rendering/svg/RenderSVGInline.h"
 
 #include "core/rendering/svg/RenderSVGText.h"
 #include "core/rendering/svg/SVGInlineFlowBox.h"
 #include "core/rendering/svg/SVGRenderSupport.h"
 #include "core/rendering/svg/SVGResourcesCache.h"
 #include "core/svg/SVGAElement.h"
 
 namespace blink {
 
-bool RenderSVGInline::isChildAllowed(RenderObject* child, RenderStyle* style) const
+bool RenderSVGInline::isChildAllowed(RenderObject* child, const RenderStyle* style) const
 {
     if (child->isText())
         return SVGRenderSupport::isRenderableTextNode(child);
 
     if (isSVGAElement(*node())) {
         // Disallow direct descendant 'a'.
         if (isSVGAElement(*child->node()))
             return false;
     }
 
@@ skipping 99 matching lines @@
         RenderInline::removeChild(child);
         return;
     }
     Vector<SVGTextLayoutAttributes*, 2> affectedAttributes;
     textRenderer->subtreeChildWillBeRemoved(child, affectedAttributes);
     RenderInline::removeChild(child);
     textRenderer->subtreeChildWasRemoved(affectedAttributes);
 }
 
 }