[SVG] SVGAnimatedRect migration to new SVG property impl.

Source/core/svg/graphics/SVGImage.cpp

 /*
  * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. 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.
@@ skipping 309 matching lines @@
     Frame* frame = m_page->mainFrame();
     SVGSVGElement* rootElement = toSVGDocument(frame->document())->rootElement();
     if (!rootElement)
         return;
 
     intrinsicWidth = rootElement->intrinsicWidth();
     intrinsicHeight = rootElement->intrinsicHeight();
     if (rootElement->preserveAspectRatioCurrentValue().align() == SVGPreserveAspectRatio::SVG_PRESERVEASPECTRATIO_NONE)
         return;
 
-    intrinsicRatio = rootElement->viewBoxCurrentValue().size();
+    intrinsicRatio = rootElement->viewBox()->currentValue()->value().size();
     if (intrinsicRatio.isEmpty() && intrinsicWidth.isFixed() && intrinsicHeight.isFixed())
         intrinsicRatio = FloatSize(floatValueForLength(intrinsicWidth, 0), floatValueForLength(intrinsicHeight, 0));
 }
 
 // FIXME: support catchUpIfNecessary.
 void SVGImage::startAnimation(bool /* catchUpIfNecessary */)
 {
     if (!m_page)
         return;
     Frame* frame = m_page->mainFrame();
@@ skipping 65 matching lines @@
 
     return m_page;
 }
 
 String SVGImage::filenameExtension() const
 {
     return "svg";
 }
 
 }