Add support for the object-position CSS property.

Source/core/platform/LengthPoint.h

 /*
  * Copyright (c) 2013, Opera Software ASA. 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.
  * 3. Neither the name of Opera Software ASA nor the names of its
  *    contributors may be used to endorse or promote products derived
  *    from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE
  * COPYRIGHT HOLDER 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.
  */
 
-/* Default styles for XHTML Mobile Profile documents where they differ from html.css */
+#ifndef LengthPoint_h
+#define LengthPoint_h
 
-@viewport {
-    width: auto;
-    /* Ideally these should be removed. Currently here to avoid test result regressions. */
-    min-zoom: 0.25;
-    max-zoom: 5;
-}
+#include "core/platform/Length.h"
+
+namespace WebCore {
+
+struct LengthPoint {
+public:
+    LengthPoint()
+    {
+    }
+
+    LengthPoint(Length x, Length y)
+        : m_x(x)
+        , m_y(y)
+    {
+    }
+
+    bool operator==(const LengthPoint& o) const { return m_x == o.m_x && m_y == o.m_y; }
+    bool operator!=(const LengthPoint& o) const { return m_x != o.m_x || m_y != o.m_y; }
+
+    void setX(Length x) { m_x = x; }
+    Length x() const { return m_x; }
+
+    void setY(Length y) { m_y = y; }
+    Length y() const { return m_y; }
+
+private:
+    Length m_x;
+    Length m_y;
+};
+
+} // namespace WebCore
+
+#endif // LengthPoint_h