Remove logic forcing paint invalidation with non-composited scrollbars

third_party/WebKit/LayoutTests/paint/invalidation/resize-scrollable-div-expected.txt

Index: third_party/WebKit/LayoutTests/paint/invalidation/resize-scrollable-div-expected.txt
diff --git a/third_party/WebKit/LayoutTests/paint/invalidation/resize-scrollable-div-expected.txt b/third_party/WebKit/LayoutTests/paint/invalidation/resize-scrollable-div-expected.txt
index 898c853f5a611d5517f7acbb33ce7cee0ee9f8fc..90333935e277882d48d7456dc5268859552f3aca 100644
--- a/third_party/WebKit/LayoutTests/paint/invalidation/resize-scrollable-div-expected.txt
+++ b/third_party/WebKit/LayoutTests/paint/invalidation/resize-scrollable-div-expected.txt
@@ -8,8 +8,8 @@
       "paintInvalidations": [
         {
           "object": "LayoutBlockFlow DIV id='div'",
-          "rect": [8, 108, 300, 300],
-          "reason": "border box change"
+          "rect": [8, 208, 300, 200],
+          "reason": "incremental"
         },
         {
           "object": "LayoutBlockFlow DIV id='div'",
@@ -18,6 +18,11 @@
         },
         {
           "object": "LayoutBlockFlow DIV id='div'",
+          "rect": [108, 108, 200, 300],
+          "reason": "incremental"
+        },
+        {
+          "object": "LayoutBlockFlow DIV id='div'",
           "rect": [8, 193, 85, 15],
           "reason": "scroll"
         },
@@ -47,7 +52,7 @@
   "objectPaintInvalidations": [
     {
       "object": "LayoutBlockFlow DIV id='div'",
-      "reason": "border box change"
+      "reason": "incremental"
     },
     {
       "object": "LayoutBlockFlow DIV id='div'",