Tweak PaintInvalidationReasons

third_party/WebKit/LayoutTests/paint/invalidation/overflow-move-after-scroll-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true
     },
     {
       "name": "LayoutBlockFlow (positioned) DIV id='scroller' class='scroller'",
       "position": [10, 60],
       "bounds": [700, 400],
       "shouldFlattenTransform": false,
       "drawsContent": true
     },
     {
       "name": "Scrolling Layer",
       "bounds": [685, 385],
       "shouldFlattenTransform": false
     },
     {
       "name": "Scrolling Contents Layer",
       "bounds": [685, 600],
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutBlockFlow (positioned) DIV id='block'",
           "rect": [300, 200, 120, 50],
-          "reason": "bounds change"
+          "reason": "geometry"
         },
         {
           "object": "LayoutBlockFlow (positioned) DIV id='block'",
           "rect": [50, 200, 120, 50],
-          "reason": "bounds change"
+          "reason": "geometry"
         }
       ]
     },
     {
       "name": "Overflow Controls Host Layer",
       "bounds": [700, 400]
     },
     {
       "name": "Horizontal Scrollbar Layer",
       "position": [0, 385],
@@ skipping 14 matching lines @@
     {
       "name": "Scroll Corner Layer",
       "position": [685, 385],
       "bounds": [15, 15],
       "drawsContent": true
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutBlockFlow (positioned) DIV id='block'",
-      "reason": "bounds change"
+      "reason": "geometry"
     }
   ]
 }