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

LayoutTests/platform/linux/svg/custom/use-clipped-hit-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": [
         [90, 115, 59, 19],
         [90, 115, 59, 19],
         [90, 115, 43, 19],
         [90, 115, 43, 19]
       ],
       "paintInvalidationClients": [
         "InlineTextBox ''",
         "LayoutSVGInlineText #text",
         "RootInlineBox",
         "LayoutSVGText text id='status'",
         "LayoutSVGInlineText #text",
         "InlineTextBox 'Passed'"
       ]
     }
   ]
 }