Tweak priorities of paint invalidation reasons

third_party/WebKit/LayoutTests/fast/repaint/selection-change-in-iframe-with-relative-parent-expected.txt

 {
   "name": "Content Root Layer",
   "bounds": [800, 600],
   "children": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutText #text",
           "rect": [18, 238, 40, 10],
           "reason": "selection"
         },
         {
           "object": "LayoutText #text",
           "rect": [18, 218, 30, 10],
           "reason": "selection"
         },
         {
           "object": "LayoutText #text",
           "rect": [18, 198, 30, 10],
           "reason": "selection"
         },
         {
           "object": "LayoutBR BR",
           "rect": [58, 238, 10, 10],
-          "reason": "bounds change"
+          "reason": "became visible"
         },
         {
           "object": "LayoutBR BR",
           "rect": [48, 218, 10, 10],
-          "reason": "bounds change"
+          "reason": "became visible"
         },
         {
           "object": "LayoutBR BR",
           "rect": [48, 198, 10, 10],
-          "reason": "bounds change"
+          "reason": "became visible"
         },
         {
           "object": "LayoutBR BR",
           "rect": [18, 228, 10, 10],
-          "reason": "bounds change"
+          "reason": "became visible"
         },
         {
           "object": "LayoutBR BR",
           "rect": [18, 208, 10, 10],
-          "reason": "bounds change"
+          "reason": "became visible"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutBlockFlow HTML",
       "reason": "selection"
     },
     {
       "object": "LayoutBlockFlow BODY",
       "reason": "selection"
     },
     {
       "object": "LayoutText #text",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'Foo'",
       "reason": "selection"
     },
     {
       "object": "LayoutBR BR",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "InlineTextBox '\n'",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "LayoutBR BR",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "InlineTextBox '\n'",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "LayoutText #text",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'Bar'",
       "reason": "selection"
     },
     {
       "object": "LayoutBR BR",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "InlineTextBox '\n'",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "LayoutBR BR",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "InlineTextBox '\n'",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "LayoutText #text",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'Bazz'",
       "reason": "selection"
     },
     {
       "object": "LayoutBR BR",
-      "reason": "bounds change"
+      "reason": "became visible"
     },
     {
       "object": "InlineTextBox '\n'",
-      "reason": "bounds change"
+      "reason": "became visible"
     }
   ]
 }