MainFrame scrollbars should work with RFV instead of FV

third_party/WebKit/LayoutTests/paint/invalidation/window-resize-centered-inline-under-fixed-pos-expected.txt

Index: third_party/WebKit/LayoutTests/paint/invalidation/window-resize-centered-inline-under-fixed-pos-expected.txt
diff --git a/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-centered-inline-under-fixed-pos-expected.txt b/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-centered-inline-under-fixed-pos-expected.txt
index 499f7978ec0e75292f9cf49223a14b5296eb52aa..0e9bb1cbd204ab24a32af4939dd1597501d241ef 100644
--- a/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-centered-inline-under-fixed-pos-expected.txt
+++ b/third_party/WebKit/LayoutTests/paint/invalidation/window-resize-centered-inline-under-fixed-pos-expected.txt
@@ -140,7 +140,7 @@
         {
           "object": "LayoutBlockFlow (positioned) DIV class='container'",
           "rect": [0, 0, 400, 600],
-          "reason": "full"
+          "reason": "forced by layout"

[ymalik, 2016/11/03 18:49:12]

This and other resize window tests are updated because of timing. When the
window is resized, the visual viewport first reflects this new size. Because
FV::computeScrollbarExistance works with the visual viewport's
visibleContentRect now (see RFV::visibleContentRect), it sees the updated state
before it did without this patch.

[bokan, 2016/11/03 19:59:59]

Acknowledged.

         },
         {
           "object": "LayoutView #document",
@@ -181,7 +181,7 @@
     },
     {
       "object": "LayoutBlockFlow (positioned) DIV class='container'",
-      "reason": "full"
+      "reason": "forced by layout"
     },
     {
       "object": "LayoutBlockFlow DIV class='parent'",
@@ -208,7 +208,7 @@
         {
           "object": "LayoutBlockFlow (positioned) DIV class='container'",
           "rect": [0, 0, 800, 600],
-          "reason": "full"
+          "reason": "forced by layout"
         },
         {
           "object": "LayoutBlockFlow HTML",
@@ -244,7 +244,7 @@
     },
     {
       "object": "LayoutBlockFlow (positioned) DIV class='container'",
-      "reason": "full"
+      "reason": "forced by layout"
     },
     {
       "object": "LayoutBlockFlow DIV class='parent'",