Always set the container size for a pAR=none image to the intrinsic size

LayoutTests/svg/custom/svg-image-par-resize-expected.txt

 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "repaintRects": [
-        [8, 8, 30, 30]
+        [108, 8, 100, 200],
+        [108, 8, 100, 200]
       ]
     }
   ]
 }