Fix GraphicsLayer under-invalidation checking when interest rect changes

third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/invalidate-after-composited-scroll-of-window-expected.txt

 {
+  "name": "Content Root Layer",
   "bounds": [785, 4936],
   "children": [
     {
+      "name": "LayoutView #document",
       "bounds": [785, 4936],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutBlockFlow DIV id='target'",
           "rect": [8, 2408, 100, 100],
           "reason": "style change"
         }
       ]
     }
+  ],
+  "objectPaintInvalidations": [
+    {
+      "object": "LayoutBlockFlow DIV id='target'",
+      "reason": "style change"
+    }
   ]
 }