The flag has been deprecated in:
https://chromium-review.googlesource.com/c/486640

This is a separate CL for the expectation changes.

Bug: 398105
Change-Id: I129186323e5ecffe441febe7fa3c6c72bfc9c4cd
Reviewed-on: https://chromium-review.googlesource.com/486782Reviewed-by: Paweł Hajdan Jr. <phajdan.jr@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>