Let padding change always trigger layout and full paint invalidation

third_party/WebKit/LayoutTests/paint/invalidation/box-sizing-padding-keeping-size-expected.txt

Index: third_party/WebKit/LayoutTests/paint/invalidation/box-sizing-padding-keeping-size-expected.txt
diff --git a/third_party/WebKit/LayoutTests/paint/invalidation/box-sizing-padding-keeping-size-expected.txt b/third_party/WebKit/LayoutTests/paint/invalidation/box-sizing-padding-keeping-size-expected.txt
index f700373f3017a4a2264b36f06e220aba1b3b28bb..0ba51d12ad28c06624319d916b03b018aec0dc7c 100644
--- a/third_party/WebKit/LayoutTests/paint/invalidation/box-sizing-padding-keeping-size-expected.txt
+++ b/third_party/WebKit/LayoutTests/paint/invalidation/box-sizing-padding-keeping-size-expected.txt
@@ -4,7 +4,29 @@
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
-      "drawsContent": true
+      "drawsContent": true,
+      "paintInvalidations": [
+        {
+          "object": "LayoutBlockFlow (positioned) DIV id='target2' class='border-box'",
+          "rect": [0, 200, 100, 100],
+          "reason": "style change"
+        },
+        {
+          "object": "LayoutBlockFlow (positioned) DIV id='target1' class='content-box'",
+          "rect": [0, 0, 100, 100],
+          "reason": "style change"
+        }
+      ]
+    }
+  ],
+  "objectPaintInvalidations": [
+    {
+      "object": "LayoutBlockFlow (positioned) DIV id='target1' class='content-box'",
+      "reason": "style change"
+    },
+    {
+      "object": "LayoutBlockFlow (positioned) DIV id='target2' class='border-box'",
+      "reason": "style change"
     }
   ]
 }