GitLab

The browsertests of login test base and all the related tests are moved
from policy_browsertests to a separate file.

Bug: 1084166
Change-Id: I63c270c7866d64ece3e3397e8914e31fc2b2872a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2207217
Commit-Queue: Swapnil Gupta <swapnilgupta@google.com>
Reviewed-by: Sergey Poromov <poromov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#770713}