Deprecate Element.offsetParent/offsetTop/offsetLeft/offsetWidth/offsetHeight

LayoutTests/svg/custom/use-disappears-after-style-update-expected.txt

+CONSOLE WARNING: 'Element.offsetTop' is deprecated and will be removed in M47, around Novemver 2015. The offset* attributes are only standardized and widely supported for HTML elements
 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "repaintRects": [
         [50, 10, 36, 36],
         [50, 10, 30, 30],
         [50, 10, 30, 30],
         [10, 10, 30, 30],
         [10, 10, 30, 30],
         [0, 10, 30, 30]
       ],
       "paintInvalidationClients": [
         "LayoutSVGRect rect id='rect'",
         "LayoutSVGRect rect id='rect'",
         "LayoutSVGRect rect id='rect'",
         "LayoutSVGRect rect id='rect'",
         "LayoutSVGContainer use",
         "LayoutSVGRect rect id='rect'"
       ]
     }
   ]
 }