Move RenderSVGResource into the inheritance hierarchy

Source/core/rendering/svg/RenderSVGResourceGradient.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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/rendering/svg/RenderSVGResourceGradient.h"
 
 namespace blink {
 
 RenderSVGResourceGradient::RenderSVGResourceGradient(SVGGradientElement* node)
-    : RenderSVGResourceContainer(node)
+    : RenderSVGResourcePaintServer(node)
     , m_shouldCollectGradientAttributes(true)
 {
 }
 
 void RenderSVGResourceGradient::removeAllClientsFromCache(bool markForInvalidation)
 {
     m_gradientMap.clear();
     m_shouldCollectGradientAttributes = true;
     markAllClientsForInvalidation(markForInvalidation ? PaintInvalidation : ParentOnlyInvalidation);
 }
@@ skipping 60 matching lines @@
 }
 
 bool RenderSVGResourceGradient::isChildAllowed(RenderObject* child, RenderStyle*) const
 {
     if (child->isSVGGradientStop())
         return true;
 
     if (!child->isSVGResourceContainer())
         return false;
 
-    RenderSVGResourceContainer* resource = toRenderSVGResourceContainer(child);
-    return resource->resourceType() == PatternResourceType
-        || resource->resourceType() == LinearGradientResourceType
-        || resource->resourceType() == RadialGradientResourceType;
+    return toRenderSVGResourceContainer(child)->isSVGPaintServer();
 }
 
 void RenderSVGResourceGradient::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);
 }
 
 GradientSpreadMethod RenderSVGResourceGradient::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;
 }
 
 }