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diff --git a/WebCore/svg/SVGFontData.h b/WebCore/svg/SVGFontData.h
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+++ b/WebCore/svg/SVGFontData.h
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+/*
+ * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
+ *
+ * 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.
+ *
+ */
+
+#ifndef SVGFontData_h
+#define SVGFontData_h
+
+#if ENABLE(SVG_FONTS)
+#include "SVGFontFaceElement.h"
+
+namespace WebCore {
+
+class SVGFontData {
+public:
+    SVGFontData(SVGFontFaceElement*);
+    virtual ~SVGFontData();
+
+    SVGFontFaceElement* svgFontFaceElement() const { return m_svgFontFaceElement; }
+
+    float horizontalOriginX() const { return m_horizontalOriginX; }
+    float horizontalOriginY() const { return m_horizontalOriginY; }
+    float horizontalAdvanceX() const { return m_horizontalAdvanceX; }
+
+    float verticalOriginX() const { return m_verticalOriginX; }
+    float verticalOriginY() const { return m_verticalOriginY; }
+    float verticalAdvanceY() const { return m_verticalAdvanceY; }
+
+private:
+    // Ths SVGFontFaceElement is kept alive --
+    // 1) in the external font case: by the CSSFontFaceSource, which holds a reference to the external SVG document
+    //    containing the element;
+    // 2) in the in-document font case: by virtue of being in the document tree and making sure that when it is removed
+    //    from the document, it removes the @font-face rule it owns from the document's mapped element sheet and forces
+    //    a style update.
+    SVGFontFaceElement* m_svgFontFaceElement;
+
+    float m_horizontalOriginX;
+    float m_horizontalOriginY;
+    float m_horizontalAdvanceX;
+
+    float m_verticalOriginX;
+    float m_verticalOriginY;
+    float m_verticalAdvanceY;
+};
+
+} // namespace WebCore
+
+#endif
+#endif // SVGFontData_h