The suit contains web tests for Fluent overlay scrollbar that can be
enabled via the following feature flag:
`--enable-features=OverlayScrollbar:mode/overlay`.
Please see more details here: https://crbug.com/1479156.

If you are trying to rebase Win10 expectations in a Win11 machine, you can
follow these instructions to temporarily disable Win11 arrows:
1. Navigate to `ui/native_theme/native_theme_fluent.cc`.
1. Change the value `"Segoe Fluent Icons"` to another name, e.g.
   `"Segoe Fluent Icons1"`.
1. Rebuild.