GitLab

- Forks TestLifetimeBrowserProxy into test_os_lifetime_browser_proxy.js
- create new os_settings_v3_browsertest.js

Bug: 1045266
Change-Id: I4500646fda8e8208d7bc63b405594592f9a7fce2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2190976
Commit-Queue: Nnamdi Theodore Johnson-kanu <tjohnsonkanu@google.com>
Reviewed-by: dpapad <dpapad@chromium.org>
Reviewed-by: Regan Hsu <hsuregan@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#771716}