Add support for the object-position CSS property.

Source/core/platform/LengthPoint.h

Index: Source/core/platform/LengthPoint.h
diff --git a/Source/core/css/xhtmlmp.css b/Source/core/platform/LengthPoint.h
similarity index 70%
copy from Source/core/css/xhtmlmp.css
copy to Source/core/platform/LengthPoint.h
index 11ea1cf1a031cfbf2694983c810bab1f925d99ae..151a852579cab0d08a1385fc7af89727ea2dc96c 100644
--- a/Source/core/css/xhtmlmp.css
+++ b/Source/core/platform/LengthPoint.h
@@ -27,11 +27,39 @@
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-/* Default styles for XHTML Mobile Profile documents where they differ from html.css */
-
-@viewport {
-    width: auto;
-    /* Ideally these should be removed. Currently here to avoid test result regressions. */
-    min-zoom: 0.25;
-    max-zoom: 5;
-}
+#ifndef LengthPoint_h
+#define LengthPoint_h
+
+#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