Use LayoutBox::paintedOutputOfObjectHasNoEffectregardlessOfSize() for SVGRoot

third_party/WebKit/LayoutTests/paint/invalidation/svg/hairline-stroke-squarecap-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutSVGPath path id='path'",
           "rect": [98, 98, 104, 104],
           "reason": "full"
         },
         {
           "object": "LayoutSVGPath path id='path'",
           "rect": [199, 199, 103, 103],
           "reason": "full"
-        },
-        {
-          "object": "LayoutSVGRoot svg",
-          "rect": [99, 99, 102, 102],
-          "reason": "bounds change"
-        },
-        {
-          "object": "LayoutSVGRoot svg",
-          "rect": [200, 200, 101, 101],
-          "reason": "bounds change"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
-      "object": "LayoutSVGRoot svg",
-      "reason": "bounds change"
-    },
-    {
       "object": "LayoutSVGPath path id='path'",
       "reason": "full"
     }
   ]
 }