diff -r 000000000000 -r 4f2f89ce4247 WebCore/platform/LengthBox.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/platform/LengthBox.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,93 @@
+/*
+    Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+    Copyright (C) 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 LengthBox_h
+#define LengthBox_h
+
+#include "Length.h"
+
+namespace WebCore {
+
+struct LengthBox {
+    LengthBox()
+    {
+    }
+
+    LengthBox(LengthType t)
+        : m_left(t)
+        , m_right(t)
+        , m_top(t)
+        , m_bottom(t)
+    {
+    }
+
+    LengthBox(int v)
+        : m_left(Length(v, Fixed))
+        , m_right(Length(v, Fixed))
+        , m_top(Length(v, Fixed))
+        , m_bottom(Length(v, Fixed))
+    {
+    }
+
+    LengthBox(Length t, Length r, Length b, Length l)
+        : m_left(l)
+        , m_right(r)
+        , m_top(t)
+        , m_bottom(b)
+    {
+    }
+    
+    LengthBox(int t, int r, int b, int l)
+        : m_left(Length(l, Fixed))
+        , m_right(Length(r, Fixed))
+        , m_top(Length(t, Fixed))
+        , m_bottom(Length(b, Fixed))
+    {
+    }
+
+    Length left() const { return m_left; }
+    Length right() const { return m_right; }
+    Length top() const { return m_top; }
+    Length bottom() const { return m_bottom; }
+
+    bool operator==(const LengthBox& o) const
+    {
+        return m_left == o.m_left && m_right == o.m_right && m_top == o.m_top && m_bottom == o.m_bottom;
+    }
+
+    bool operator!=(const LengthBox& o) const
+    {
+        return !(*this == o);
+    }
+
+    bool nonZero() const
+    {
+        return !(m_left.isZero() && m_right.isZero() && m_top.isZero() && m_bottom.isZero());
+    }
+
+    Length m_left;
+    Length m_right;
+    Length m_top;
+    Length m_bottom;
+};
+
+} // namespace WebCore
+
+#endif // LengthBox_h