Eagerly invalidate when a layer becomes stacking context

third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/scroll-descendant-with-cached-cliprects-expected.txt

Index: third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/scroll-descendant-with-cached-cliprects-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/scroll-descendant-with-cached-cliprects-expected.txt b/third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/scroll-descendant-with-cached-cliprects-expected.txt
index 53b3d9a78ac272f62a1e7532e7c69f29ecb01553..d3c275a147b994b13690d6fa500e3c053b265779 100644
--- a/third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/scroll-descendant-with-cached-cliprects-expected.txt
+++ b/third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/scroll-descendant-with-cached-cliprects-expected.txt
@@ -12,27 +12,22 @@
           "reason": "subtree"
         },
         {
-          "object": "LayoutBlockFlow (relative positioned) DIV id='ul'",
-          "rect": [677, 252, 100, 100],
-          "reason": "subtree"
-        },
-        {
-          "object": "LayoutBlockFlow DIV",
-          "rect": [677, 252, 100, 100],
+          "object": "LayoutBlockFlow (relative positioned) DIV class='container'",
+          "rect": [677, 52, 100, 100],
           "reason": "subtree"
         },
         {
-          "object": "LayoutBlockFlow (positioned) DIV id='scrollpanel'",
+          "object": "LayoutBlockFlow (relative positioned) DIV id='ul'",
           "rect": [677, 52, 100, 100],
           "reason": "subtree"
         },
         {
-          "object": "LayoutBlockFlow (relative positioned) DIV id='ul'",
+          "object": "LayoutBlockFlow DIV",
           "rect": [677, 52, 100, 100],
           "reason": "subtree"
         },
         {
-          "object": "LayoutBlockFlow DIV",
+          "object": "LayoutBlockFlow DIV id='scrollpanel'",
           "rect": [677, 52, 100, 100],
           "reason": "subtree"
         }
@@ -41,6 +36,22 @@
   ],
   "objectPaintInvalidations": [
     {
+      "object": "LayoutBlockFlow DIV id='scrollpanel'",
+      "reason": "subtree"
+    },
+    {
+      "object": "LayoutBlockFlow (relative positioned) DIV class='container'",
+      "reason": "subtree"
+    },
+    {
+      "object": "LayoutBlockFlow (relative positioned) DIV id='ul'",
+      "reason": "subtree"
+    },
+    {
+      "object": "LayoutBlockFlow DIV",
+      "reason": "subtree"
+    },
+    {
       "object": "LayoutBlockFlow (positioned) DIV id='scrollpanel'",
       "reason": "style change"
     },