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diff --git a/Source/WebCore/loader/cache/CachedSVGFont.h b/Source/WebCore/loader/cache/CachedSVGFont.h
new file mode 100644
index 000000000..93ed7a0c4
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+++ b/Source/WebCore/loader/cache/CachedSVGFont.h
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+/*
+ * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#pragma once
+
+#if ENABLE(SVG_FONTS)
+
+#include "CachedFont.h"
+
+namespace WebCore {
+
+class SVGFontFaceElement;
+
+class CachedSVGFont final : public CachedFont {
+public:
+    CachedSVGFont(CachedResourceRequest&&, SessionID);
+
+    bool ensureCustomFontData(const AtomicString& remoteURI) override;
+
+    RefPtr<Font> createFont(const FontDescription&, const AtomicString& remoteURI, bool syntheticBold, bool syntheticItalic, const FontFeatureSettings&, const FontVariantSettings&) override;
+
+private:
+    FontPlatformData platformDataFromCustomData(const FontDescription&, bool bold, bool italic, const FontFeatureSettings&, const FontVariantSettings&);
+
+    SVGFontElement* getSVGFontById(const String&) const;
+
+    SVGFontElement* maybeInitializeExternalSVGFontElement(const AtomicString& remoteURI);
+    SVGFontFaceElement* firstFontFace(const AtomicString& remoteURI);
+
+    RefPtr<SharedBuffer> m_convertedFont;
+    RefPtr<SVGDocument> m_externalSVGDocument;
+    SVGFontElement* m_externalSVGFontElement;
+};
+
+} // namespace WebCore
+
+SPECIALIZE_TYPE_TRAITS_CACHED_RESOURCE(CachedSVGFont, CachedResource::SVGFontResource)
+
+#endif // ENABLE(SVG_FONTS)