Reduce invalidation on children-needs-layout containers

LayoutTests/fast/repaint/repaint-table-row-in-composited-document-expected.txt

 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "repaintRects": [
         [256, 306, 204, 104],
         [256, 156, 204, 104],
         [52, 306, 202, 104],
         [52, 156, 202, 104],
         [52, 52, 202, 252],
         [52, 52, 202, 102],
         [50, 306, 412, 104],
         [50, 262, 700, 150],
         [50, 262, 412, 150],
         [50, 262, 412, 150],
         [50, 156, 412, 104],
-        [50, 154, 412, 150],
         [0, 312, 800, 150]
       ]
     }
   ]
 }