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diff --git a/WebCore/css/MediaQueryExp.h b/WebCore/css/MediaQueryExp.h
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+/*
+ * CSS Media Query
+ *
+ * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
+ *
+ * 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 THE AUTHOR ``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 MediaQueryExp_h
+#define MediaQueryExp_h
+
+#include "AtomicString.h"
+#include "CSSValue.h"
+#include "MediaFeatureNames.h"
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+class CSSParserValueList;
+
+class MediaQueryExp
+{
+public:
+    MediaQueryExp(const AtomicString& mediaFeature, CSSParserValueList* values);
+    ~MediaQueryExp();
+
+    AtomicString mediaFeature() const { return m_mediaFeature; }
+
+    CSSValue* value() const { return m_value.get(); }
+
+    bool operator==(const MediaQueryExp& other) const  {
+        return (other.m_mediaFeature == m_mediaFeature)
+            && ((!other.m_value && !m_value)
+                || (other.m_value && m_value && other.m_value->cssText() == m_value->cssText()));
+    }
+
+    bool isViewportDependent() const { return m_mediaFeature == MediaFeatureNames::widthMediaFeature || 
+                                              m_mediaFeature == MediaFeatureNames::heightMediaFeature ||
+                                              m_mediaFeature == MediaFeatureNames::min_widthMediaFeature ||
+                                              m_mediaFeature == MediaFeatureNames::min_heightMediaFeature ||
+                                              m_mediaFeature == MediaFeatureNames::max_widthMediaFeature ||
+                                              m_mediaFeature == MediaFeatureNames::max_heightMediaFeature; }
+private:
+    AtomicString m_mediaFeature;
+    RefPtr<CSSValue> m_value;
+};
+
+} // namespace
+
+#endif