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diff --git a/WebCore/platform/graphics/SegmentedFontData.h b/WebCore/platform/graphics/SegmentedFontData.h
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+++ b/WebCore/platform/graphics/SegmentedFontData.h
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+/*
+ * Copyright (C) 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 COMPUTER, 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 COMPUTER, 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. 
+ */
+
+#ifndef SegmentedFontData_h
+#define SegmentedFontData_h
+
+#include "FontData.h"
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+class SimpleFontData;
+
+struct FontDataRange {
+    FontDataRange(UChar32 from, UChar32 to, const SimpleFontData* fontData)
+        : m_from(from)
+        , m_to(to)
+        , m_fontData(fontData)
+    {
+    }
+
+    UChar32 from() const { return m_from; }
+    UChar32 to() const { return m_to; }
+    const SimpleFontData* fontData() const { return m_fontData; }
+
+private:
+    UChar32 m_from;
+    UChar32 m_to;
+    const SimpleFontData* m_fontData;
+};
+
+class SegmentedFontData : public FontData {
+public:
+    virtual ~SegmentedFontData();
+
+    virtual const SimpleFontData* fontDataForCharacter(UChar32) const;
+    virtual bool containsCharacters(const UChar*, int length) const;
+
+    virtual bool isCustomFont() const;
+    virtual bool isLoading() const;
+    virtual bool isSegmented() const;
+
+    void appendRange(const FontDataRange& range) { m_ranges.append(range); }
+    unsigned numRanges() const { return m_ranges.size(); }
+    const FontDataRange& rangeAt(unsigned i) const { return m_ranges[i]; }
+
+private:
+    Vector<FontDataRange, 1> m_ranges;
+};
+
+} // namespace WebCore
+
+#endif // SegmentedFontData_h