GitLab

The revoke reason kUserSignedOut should only be recorded when
the user opted into unified consent before. This CL fixes this.

Bug: 868892
Change-Id: I746ca040a554ec78599f16871e831acc11c7afcf
Reviewed-on: https://chromium-review.googlesource.com/1238583Reviewed-by: David Roger <droger@chromium.org>
Commit-Queue: Thomas Tangl <tangltom@chromium.org>
Cr-Commit-Position: refs/heads/master@{#593515}