1 files changed, 51 insertions, 0 deletions
diff --git a/Source/WebCore/rendering/SVGResourcesCycleSolver.h b/Source/WebCore/rendering/SVGResourcesCycleSolver.h
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+++ b/Source/WebCore/rendering/SVGResourcesCycleSolver.h
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+/*
+    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
+    aint 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.
+*/
+
+#ifndef SVGResourcesCycleSolver_h
+#define SVGResourcesCycleSolver_h
+
+#if ENABLE(SVG)
+#include <wtf/HashSet.h>
+
+namespace WebCore {
+
+class RenderObject;
+class RenderSVGResourceContainer;
+class SVGResources;
+
+class SVGResourcesCycleSolver : public Noncopyable {
+public:
+    SVGResourcesCycleSolver(RenderObject*, SVGResources*);
+    ~SVGResourcesCycleSolver();
+
+    void resolveCycles();
+
+private:
+    bool resourceContainsCycles(RenderObject*) const;
+    void breakCycle(RenderSVGResourceContainer*);
+
+    RenderObject* m_renderer;
+    SVGResources* m_resources;
+    HashSet<RenderSVGResourceContainer*> m_allResources; 
+};
+
+}
+
+#endif
+#endif