Simplify incremental paint invalidation

third_party/WebKit/LayoutTests/platform/win/compositing/squashing/selection-repaint-with-gaps-expected.txt

 lorem ipsumlorem ipsumlorem ipsum
 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true
     },
     {
       "name": "Squashing Containment Layer",
       "shouldFlattenTransform": false
     },
     {
       "name": "LayoutBlockFlow DIV class='overlap'",
       "position": [8, 8],
       "bounds": [300, 500]
     },
     {
       "name": "Squashing Layer (first squashed layer: LayoutBlockFlow (positioned) DIV class='item')",
       "position": [15, 35],
       "bounds": [100, 210],
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutText #text",
           "rect": [0, 80, 42, 35],
+          "reason": "full"
+        },
+        {
+          "object": "LayoutText #text",
+          "rect": [0, 80, 42, 35],
           "reason": "selection"
-        },
-        {
-          "object": "LayoutText #text",
-          "rect": [39, 80, 3, 35],
-          "reason": "incremental"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutBlockFlow (positioned) DIV id='item1' class='item'",
       "reason": "selection"
     },
     {
       "object": "LayoutBlockFlow DIV class='inline-block'",
       "reason": "selection"
     },
     {
       "object": "LayoutText #text",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'lorem'",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'ipsum'",
       "reason": "selection"
     },
     {
       "object": "LayoutText #text",
-      "reason": "incremental"
+      "reason": "full"
     },
     {
       "object": "InlineTextBox 'lorem'",
-      "reason": "incremental"
+      "reason": "full"
     },
     {
       "object": "InlineTextBox 'ipsum'",
-      "reason": "incremental"
+      "reason": "full"
     }
   ]
 }
 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true
     },
     {
       "name": "Squashing Containment Layer",
       "shouldFlattenTransform": false
     },
     {
       "name": "LayoutBlockFlow DIV class='overlap'",
       "position": [8, 8],
       "bounds": [300, 500]
     },
     {
       "name": "Squashing Layer (first squashed layer: LayoutBlockFlow (positioned) DIV class='item')",
       "position": [15, 35],
       "bounds": [100, 210],
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutText #text",
           "rect": [0, 80, 44, 35],
+          "reason": "full"
+        },
+        {
+          "object": "LayoutText #text",
+          "rect": [0, 80, 44, 35],
           "reason": "selection"
         },
         {
           "object": "LayoutText #text",
           "rect": [0, 160, 42, 35],
-          "reason": "selection"
+          "reason": "full"
         },
         {
           "object": "LayoutText #text",
-          "rect": [39, 80, 5, 35],
-          "reason": "incremental"
-        },
-        {
-          "object": "LayoutText #text",
-          "rect": [39, 160, 3, 35],
-          "reason": "incremental"
+          "rect": [0, 160, 42, 35],
+          "reason": "selection"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutBlockFlow (positioned) DIV id='item1' class='item'",
       "reason": "selection"
     },
     {
       "object": "LayoutBlockFlow DIV class='inline-block'",
       "reason": "selection"
     },
     {
       "object": "LayoutText #text",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'lorem'",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'ipsum'",
       "reason": "selection"
     },
     {
       "object": "LayoutText #text",
-      "reason": "incremental"
+      "reason": "full"
     },
     {
       "object": "InlineTextBox 'lorem'",
-      "reason": "incremental"
+      "reason": "full"
     },
     {
       "object": "InlineTextBox 'ipsum'",
-      "reason": "incremental"
+      "reason": "full"
     },
     {
       "object": "LayoutBlockFlow (positioned) DIV id='item2' class='item'",
       "reason": "selection"
     },
     {
       "object": "LayoutBlockFlow DIV class='inline-block'",
       "reason": "selection"
     },
     {
       "object": "LayoutText #text",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'lorem'",
       "reason": "selection"
     },
     {
       "object": "InlineTextBox 'ipsum'",
       "reason": "selection"
     },
     {
       "object": "LayoutText #text",
-      "reason": "incremental"
+      "reason": "full"
     },
     {
       "object": "InlineTextBox 'lorem'",
-      "reason": "incremental"
+      "reason": "full"
     },
     {
       "object": "InlineTextBox 'ipsum'",
-      "reason": "incremental"
+      "reason": "full"
     }
   ]
 }