[css-align] New CSS Value 'normal' for Self Alignment

third_party/WebKit/LayoutTests/fast/repaint/justify-items-change-expected.txt

 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutGrid DIV id='container'",
           "rect": [0, 52, 200, 300],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutGrid DIV id='container'",
-          "rect": [0, 52, 200, 300],
-          "reason": "layoutObject removal"
+          "reason": "style change"
         },
         {
           "object": "LayoutBlockFlow DIV class='item'",
           "rect": [150, 52, 50, 300],
-          "reason": "layoutObject removal"
+          "reason": "bounds change"
         },
         {
           "object": "LayoutBlockFlow DIV class='item'",
           "rect": [0, 52, 50, 300],
-          "reason": "layoutObject insertion"
+          "reason": "bounds change"
         },
         {
           "object": "LayoutBlockFlow DIV",
           "rect": [150, 52, 50, 50],
-          "reason": "layoutObject removal"
+          "reason": "bounds change"
         },
         {
           "object": "LayoutBlockFlow DIV",
           "rect": [0, 52, 50, 50],
-          "reason": "layoutObject insertion"
+          "reason": "bounds change"
         }
       ]
     }
   ]
 }