GitLab

It was not possible to change the login screen profile's default
bluetooth preference through settingsPrivate. This cl enables that
behavior.

Bug: b:161902990
Change-Id: Ib0f0f798994182a19ee01562d7d5899667b58525
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2500445Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Ryan Hansberry <hansberry@chromium.org>
Commit-Queue: Billy Zhao <billyzhao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#821759}