Don't apply overflow clips in paint invalidation.

third_party/WebKit/LayoutTests/paint/invalidation/overflow-hidden-yet-scrolled-expected.txt

Index: third_party/WebKit/LayoutTests/paint/invalidation/overflow-hidden-yet-scrolled-expected.txt
diff --git a/third_party/WebKit/LayoutTests/paint/invalidation/overflow-hidden-yet-scrolled-expected.txt b/third_party/WebKit/LayoutTests/paint/invalidation/overflow-hidden-yet-scrolled-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..aa4b2a50f8e48df4c8d0d6176a2d11533e661f70
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/paint/invalidation/overflow-hidden-yet-scrolled-expected.txt
@@ -0,0 +1,63 @@
+{
+  "name": "Content Root Layer",
+  "bounds": [800, 600],
+  "children": [
+    {
+      "name": "LayoutView #document",
+      "bounds": [800, 600],
+      "contentsOpaque": true,
+      "drawsContent": true,
+      "children": [
+        {
+          "name": "LayoutBlockFlow DIV id='scroller'",
+          "position": [8, 8],
+          "bounds": [302, 302],
+          "drawsContent": true,
+          "backfaceVisibility": "hidden",
+          "paintInvalidations": [
+            {
+              "object": "LayoutBlockFlow DIV id='scroller'",
+              "rect": [0, 0, 302, 302],
+              "reason": "subtree"
+            },
+            {
+              "object": "LayoutBlockFlow DIV",
+              "rect": [1, 1, 300, 600],
+              "reason": "subtree"
+            },
+            {
+              "object": "LayoutBlockFlow DIV",
+              "rect": [1, -399, 300, 600],
+              "reason": "subtree"
+            },
+            {
+              "object": "LayoutBlockFlow DIV",
+              "rect": [1, 601, 100, 100],
+              "reason": "subtree"
+            },
+            {
+              "object": "LayoutBlockFlow DIV",
+              "rect": [1, 201, 100, 100],
+              "reason": "subtree"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "objectPaintInvalidations": [
+    {
+      "object": "LayoutBlockFlow DIV id='scroller'",
+      "reason": "subtree"
+    },
+    {
+      "object": "LayoutBlockFlow DIV",
+      "reason": "subtree"
+    },
+    {
+      "object": "LayoutBlockFlow DIV",
+      "reason": "subtree"
+    }
+  ]
+}
+