diff -r 000000000000 -r 4f2f89ce4247 WebCore/css/CSSQuirkPrimitiveValue.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/css/CSSQuirkPrimitiveValue.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,50 @@
+/*
+ * (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
+ *
+ * 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 CSSQuirkPrimitiveValue_h
+#define CSSQuirkPrimitiveValue_h
+
+#include "CSSPrimitiveValue.h"
+
+namespace WebCore {
+
+// This value is used to handle quirky margins in reflow roots (body, td, and th) like WinIE.
+// The basic idea is that a stylesheet can use the value __qem (for quirky em) instead of em.
+// When the quirky value is used, if you're in quirks mode, the margin will collapse away
+// inside a table cell.
+class CSSQuirkPrimitiveValue : public CSSPrimitiveValue {
+public:
+    static PassRefPtr<CSSQuirkPrimitiveValue> create(double value, UnitTypes type)
+    {
+        return adoptRef(new CSSQuirkPrimitiveValue(value, type));
+    }
+
+private:
+    CSSQuirkPrimitiveValue(double num, UnitTypes type)
+        : CSSPrimitiveValue(num, type)
+    {
+    }
+
+    virtual bool isQuirkValue() { return true; }
+};
+
+} // namespace WebCore
+
+#endif // CSSQuirkPrimitiveValue_h