GitLab

This CL moves SignOutDialogFragment and its unit tests to signin.ui
target.

Bug: 1157415
Change-Id: I86739c298e39a660be757ec22bb82d0d950144bd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2587163Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Alice Wang <aliceywang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837010}