Tweak PaintInvalidationReasons

third_party/WebKit/LayoutTests/platform/win/virtual/disable-spinvalidation/paint/invalidation/gradients-em-stops-repaint-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutBlockFlow DIV class='em-units'",
           "rect": [8, 8, 784, 147],
-          "reason": "forced by layout"
+          "reason": "geometry"
         },
         {
           "object": "LayoutBlockFlow DIV id='box4' class='box'",
           "rect": [344, 18, 302, 122],
           "reason": "style change"
         },
         {
           "object": "LayoutBlockFlow DIV id='box3' class='box'",
           "rect": [18, 18, 302, 122],
-          "reason": "forced by layout"
+          "reason": "geometry"
         },
         {
           "object": "LayoutBlockFlow DIV class='indicator'",
           "rect": [345, 19, 240, 20],
           "reason": "style change"
         },
         {
           "object": "LayoutText #text",
           "rect": [330, 135, 4, 19],
-          "reason": "forced by layout"
+          "reason": "geometry"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutBlockFlow DIV class='em-units'",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "RootInlineBox",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutBlockFlow DIV id='box3' class='box'",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutText #text",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "InlineTextBox '\n'",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutBlockFlow DIV id='box4' class='box'",
       "reason": "style change"
     },
     {
       "object": "LayoutBlockFlow DIV class='indicator'",
       "reason": "style change"
     }
   ]
 }