GitLab

- If a scheme is unspecified, we will default with ipps.
- If that fails then we will fallback with ipp with port 631.

Bug: 1045651
Test: end to end manual
Change-Id: Id25cc700340913c6f3df6a7e508c2341d6913cb6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2086687
Commit-Queue: jimmy gong <jimmyxgong@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Bailey Berro <baileyberro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#749374}