Auto-rebaseline for r179857

LayoutTests/compositing/squashing/repaint-overflow-scrolled-squashed-content-expected.txt

 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "children": [
         {
           "position": [8, 8],
           "bounds": [185, 185],
           "children": [
             {
               "bounds": [150, 1000],
               "contentsOpaque": true,
               "drawsContent": true,
               "backgroundColor": "#ADD8E6"
             },
             {
               "bounds": [100, 1000],
               "drawsContent": true,
               "repaintRects": [
-                [0, 0, 100, 1000],
                 [0, 0, 100, 1000]
               ]
             }
           ]
         }
       ]
     }
   ]
 }