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diff --git a/Source/WebCore/css/CSSFontFace.cpp b/Source/WebCore/css/CSSFontFace.cpp
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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 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. 
+ */
+
+#include "config.h"
+#include "CSSFontFace.h"
+
+#include "CSSFontFaceSource.h"
+#include "CSSFontSelector.h"
+#include "CSSSegmentedFontFace.h"
+#include "FontDescription.h"
+#include "SimpleFontData.h"
+
+namespace WebCore {
+
+CSSFontFace::~CSSFontFace()
+{
+    deleteAllValues(m_sources);
+}
+
+bool CSSFontFace::isLoaded() const
+{
+    unsigned size = m_sources.size();
+    for (unsigned i = 0; i < size; i++) {
+        if (!m_sources[i]->isLoaded())
+            return false;
+    }
+    return true;
+}
+
+bool CSSFontFace::isValid() const
+{
+    unsigned size = m_sources.size();
+    if (!size)
+        return false;
+    for (unsigned i = 0; i < size; i++) {
+        if (m_sources[i]->isValid())
+            return true;
+    }
+    return false;
+}
+
+void CSSFontFace::addedToSegmentedFontFace(CSSSegmentedFontFace* segmentedFontFace)
+{
+    m_segmentedFontFaces.add(segmentedFontFace);
+}
+
+void CSSFontFace::removedFromSegmentedFontFace(CSSSegmentedFontFace* segmentedFontFace)
+{
+    m_segmentedFontFaces.remove(segmentedFontFace);
+}
+
+void CSSFontFace::addSource(CSSFontFaceSource* source)
+{
+    m_sources.append(source);
+    source->setFontFace(this);
+}
+
+void CSSFontFace::fontLoaded(CSSFontFaceSource* source)
+{
+    if (source != m_activeSource)
+        return;
+
+    // FIXME: Can we assert that m_segmentedFontFaces is not empty? That may
+    // require stopping in-progress font loading when the last
+    // CSSSegmentedFontFace is removed.
+    if (m_segmentedFontFaces.isEmpty())
+        return;
+
+    HashSet<CSSSegmentedFontFace*>::iterator end = m_segmentedFontFaces.end();
+    for (HashSet<CSSSegmentedFontFace*>::iterator it = m_segmentedFontFaces.begin(); it != end; ++it)
+        (*it)->fontLoaded(this);
+
+    // Use one of the CSSSegmentedFontFaces' font selector. They all have
+    // the same font selector, so it's wasteful to store it in the CSSFontFace.
+    CSSFontSelector* fontSelector = (*m_segmentedFontFaces.begin())->fontSelector();
+    fontSelector->fontLoaded();
+}
+
+SimpleFontData* CSSFontFace::getFontData(const FontDescription& fontDescription, bool syntheticBold, bool syntheticItalic)
+{
+    m_activeSource = 0;
+    if (!isValid())
+        return 0;
+
+    ASSERT(!m_segmentedFontFaces.isEmpty());
+    CSSFontSelector* fontSelector = (*m_segmentedFontFaces.begin())->fontSelector();
+
+    size_t size = m_sources.size();
+    for (size_t i = 0; i < size; ++i) {
+        if (SimpleFontData* result = m_sources[i]->getFontData(fontDescription, syntheticBold, syntheticItalic, fontSelector)) {
+            m_activeSource = m_sources[i];
+            return result;
+        }
+    }
+
+    return 0;
+}
+
+#if ENABLE(SVG_FONTS)
+bool CSSFontFace::hasSVGFontFaceSource() const
+{
+    for (unsigned i = 0; i < m_sources.size(); i++) {
+        if (m_sources[i]->isSVGFontFaceSource())
+            return true;
+    }
+    return false;
+}
+#endif
+
+}
+