Const-ify static s_resourceType members in RenderSVGResouce* classes

Source/core/rendering/svg/RenderSVGResourceMasker.cpp

 /*
  * Copyright (C) Research In Motion Limited 2009-2010. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 11 matching lines @@
 
 #include "core/dom/ElementTraversal.h"
 #include "core/rendering/svg/SVGRenderingContext.h"
 #include "core/svg/SVGElement.h"
 #include "platform/graphics/DisplayList.h"
 #include "platform/graphics/GraphicsContextStateSaver.h"
 #include "platform/transforms/AffineTransform.h"
 
 namespace blink {
 
-const RenderSVGResourceType RenderSVGResourceMasker::s_resourceType = MaskerResourceType;
-
 RenderSVGResourceMasker::RenderSVGResourceMasker(SVGMaskElement* node)
     : RenderSVGResourceContainer(node)
 {
 }
 
 RenderSVGResourceMasker::~RenderSVGResourceMasker()
 {
 }
 
 void RenderSVGResourceMasker::removeAllClientsFromCache(bool markForInvalidation)
@@ skipping 135 matching lines @@
         transform.translate(objectBoundingBox.x(), objectBoundingBox.y());
         transform.scaleNonUniform(objectBoundingBox.width(), objectBoundingBox.height());
         maskRect = transform.mapRect(maskRect);
     }
 
     maskRect.intersect(maskBoundaries);
     return maskRect;
 }
 
 }