Tweak PaintInvalidationReasons

third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/overflow-scroll-body-appear-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [2008, 2096],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutView #document",
           "rect": [0, 0, 2008, 2096],
           "reason": "style change"
         },
         {
           "object": "LayoutView #document",
           "rect": [0, 585, 785, 15],
-          "reason": "scroll"
+          "reason": "scroll control"
         },
         {
           "object": "LayoutBlockFlow BODY",
           "rect": [8, 16, 784, 2072],
           "reason": "style change"
         },
         {
           "object": "LayoutText #text",
           "rect": [124, 52, 383, 19],
-          "reason": "forced by layout"
+          "reason": "geometry"
         },
         {
           "object": "LayoutView #document",
           "rect": [785, 0, 15, 585],
-          "reason": "scroll"
+          "reason": "scroll control"
         },
         {
           "object": "LayoutView #document",
           "rect": [785, 585, 15, 15],
-          "reason": "scroll"
+          "reason": "scroll control"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutView #document",
-      "reason": "scroll"
+      "reason": "geometry"
     },
     {
       "object": "LayoutView #document",
-      "reason": "scroll"
+      "reason": "geometry"
     },
     {
       "object": "LayoutView #document",
       "reason": "style change"
     },
     {
       "object": "LayoutBlockFlow BODY",
       "reason": "style change"
     },
     {
       "object": "LayoutBlockFlow P",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "RootInlineBox",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutText #text",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "InlineTextBox 'You should see both vertical and horizontal scrollbars.'",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutBlockFlow P",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "RootInlineBox",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutText #text",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "InlineTextBox 'This is the test for '",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutText #text",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "InlineTextBox 'Bug 36461 - No vertical scrollbar after the CSS class change'",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "LayoutText #text",
-      "reason": "forced by layout"
+      "reason": "geometry"
     },
     {
       "object": "InlineTextBox '.'",
-      "reason": "forced by layout"
+      "reason": "geometry"
     }
   ]
 }