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diff --git a/Source/WebCore/platform/graphics/RoundedIntRect.h b/Source/WebCore/platform/graphics/RoundedIntRect.h
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+++ b/Source/WebCore/platform/graphics/RoundedIntRect.h
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+/*
+ * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2010 Google 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 AND ITS CONTRIBUTORS "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 OR ITS 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 RoundedIntRect_h
+#define RoundedIntRect_h
+
+#include "IntRect.h"
+
+namespace WebCore {
+
+
+class RoundedIntRect {
+public:
+    class Radii {
+    public:
+        Radii() {}
+        Radii(const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight)
+            : m_topLeft(topLeft)
+            , m_topRight(topRight)
+            , m_bottomLeft(bottomLeft)
+            , m_bottomRight(bottomRight)
+        {
+        }
+
+        void setTopLeft(const IntSize& size) { m_topLeft = size; }
+        void setTopRight(const IntSize& size) { m_topRight = size; }
+        void setBottomLeft(const IntSize& size) { m_bottomLeft = size; }
+        void setBottomRight(const IntSize& size) { m_bottomRight = size; }
+        const IntSize& topLeft() const { return m_topLeft; }
+        const IntSize& topRight() const { return m_topRight; }
+        const IntSize& bottomLeft() const { return m_bottomLeft; }
+        const IntSize& bottomRight() const { return m_bottomRight; }
+
+        bool isZero() const;
+
+        void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
+        void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge);
+
+        void scale(float factor);
+        void expand(int topWidth, int bottomWidth, int leftWidth, int rightWidth);
+        void expand(int size) { expand(size, size, size, size); }
+        void shrink(int topWidth, int bottomWidth, int leftWidth, int rightWidth) { expand(-topWidth, -bottomWidth, -leftWidth, -rightWidth); }
+        void shrink(int size) { shrink(size, size, size, size); }
+
+    private:
+        IntSize m_topLeft;
+        IntSize m_topRight;
+        IntSize m_bottomLeft;
+        IntSize m_bottomRight;
+    };
+
+    explicit RoundedIntRect(const IntRect&, const Radii& = Radii());
+    RoundedIntRect(int x, int y, int width, int height);
+    RoundedIntRect(const IntRect&, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight);
+
+    const IntRect& rect() const { return m_rect; }
+    const Radii& radii() const { return m_radii; }
+    bool isRounded() const { return !m_radii.isZero(); }
+    bool isEmpty() const { return m_rect.isEmpty(); }
+
+    void setRect(const IntRect& rect) { m_rect = rect; }
+    void setRadii(const Radii& radii) { m_radii = radii; }
+
+    void move(const IntSize& size) { m_rect.move(size); }
+    void inflate(int size) { m_rect.inflate(size);  }
+    void inflateWithRadii(int size) { m_rect.inflate(size); m_radii.expand(size); }
+    void expandRadii(int size) { m_radii.expand(size); }
+    void shrinkRadii(int size) { m_radii.shrink(size); }
+
+    void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
+    void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge);
+
+private:
+    IntRect m_rect;
+    Radii m_radii;
+};
+
+} // namespace WebCore
+
+#endif // RoundedIntRect_h