Taking this

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/557d4cfd2336cc35f91ec95bb9ef4b1290e6d491

commit 557d4cfd2336cc35f91ec95bb9ef4b1290e6d491
Author: Sergio Villar Senin <svillar@igalia.com>
Date: Fri Oct 12 11:46:53 2018

Convert chrome/browser/signin/signin_global_error.cc to IdentityManager

It was using SigninManagerBase API to get the primary (authenticated)
account id. It's now using the IdentityManager API.

Bug:  890792 
Change-Id: Ia8cdd8e491f29256af2c015a9127b0766e81b99e
Reviewed-on: https://chromium-review.googlesource.com/c/1276965
Commit-Queue: Sergio Villar <svillar@igalia.com>
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Cr-Commit-Position: refs/heads/master@{#599173}
[modify] https://crrev.com/557d4cfd2336cc35f91ec95bb9ef4b1290e6d491/chrome/browser/signin/signin_global_error.cc

Closing then