GitLab

Adds chrome/browser/lacros/account_manager_facade_lacros_unittest.cc and
a couple of basic tests for AccountManagerFacadeLacros. To make that
class testable, the mojo::Remote is now passed explicitly to the ctor.

Bug: 1117472
Change-Id: I59826ff3c7c0d6561b8fd4cb94a164884eb91a4e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2545923Reviewed-by: Roland Bock <rbock@google.com>
Reviewed-by: Kush Sinha <sinhak@chromium.org>
Commit-Queue: Boris Sazonov <bsazonov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835836}