GitLab

This CL tests and refactors the SignOutDialogFragment.

Bug: 967374
Change-Id: Ibe0af76022877305b38513d5855e238465635469
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1982557
Commit-Queue: Alice Wang <aliceywang@chromium.org>
Reviewed-by: Tanmoy Mollik <triploblastic@chromium.org>
Reviewed-by: Boris Sazonov <bsazonov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#730124}