Let's do this

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b19fcbad805d713bfca49497bbaadd50f01d79ad

commit b19fcbad805d713bfca49497bbaadd50f01d79ad
Author: Sergio Villar Senin <svillar@igalia.com>
Date: Thu Nov 22 16:48:14 2018

Convert device_local_account_browsertest.cc to Identity service

Replaced the usage of SinginManager API by the correspondent
IdentityManager API.

Bug:  903860 
Change-Id: I5f4df0e9956c4b4ae055f15b80fddac9009e61d0
Reviewed-on: https://chromium-review.googlesource.com/c/1347281
Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Reviewed-by: Colin Blundell <blundell@chromium.org>
Commit-Queue: Sergio Villar <svillar@igalia.com>
Cr-Commit-Position: refs/heads/master@{#610441}
[modify] https://crrev.com/b19fcbad805d713bfca49497bbaadd50f01d79ad/chrome/browser/chromeos/policy/device_local_account_browsertest.cc

We can close this now