Invalidate caret during paint invalidation

third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/inline-outline-repaint-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutBlockFlow DIV",
           "rect": [8, 156, 100, 40],
           "reason": "forced by layout"
         },
         {
           "object": "LayoutInline SPAN id='test'",
           "rect": [5, 153, 92, 45],
           "reason": "forced by layout"
         },
         {
           "object": "LayoutText #text",
           "rect": [8, 156, 86, 39],
           "reason": "full"
-        },
-        {
-          "object": "LayoutText #text",
-          "rect": [43, 175, 3, 21],
-          "reason": "invalidate paint rectangle"
-        },
-        {
-          "object": "LayoutText #text",
-          "rect": [43, 175, 3, 21],
-          "reason": "invalidate paint rectangle"
-        },
-        {
-          "object": "LayoutText #text",
-          "rect": [43, 175, 3, 21],
-          "reason": "invalidate paint rectangle"
         }
       ]
     }
   ],
   "objectPaintInvalidations": [
     {
       "object": "LayoutText #text",
       "reason": "layoutObject removal"
     },
     {
-      "object": "Caret",
-      "reason": "invalidate paint rectangle"
-    },
-    {
       "object": "LayoutBlockFlow DIV",
       "reason": "forced by layout"
     },
     {
       "object": "RootInlineBox",
       "reason": "forced by layout"
     },
     {
       "object": "Caret",
-      "reason": "invalidate paint rectangle"
+      "reason": "caret"
     },
     {
       "object": "Caret",
-      "reason": "invalidate paint rectangle"
+      "reason": "caret"
     },
     {
       "object": "LayoutInline SPAN id='test'",
       "reason": "forced by layout"
     },
     {
       "object": "InlineFlowBox",
       "reason": "forced by layout"
     },
     {
@@ skipping 12 matching lines @@
       "object": "InlineTextBox ' '",
       "reason": "full"
     },
     {
       "object": "InlineTextBox 'dolor\u00A0'",
       "reason": "full"
     }
   ]
 }