The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9addf391236ba99c61d0046ddf50110f7be039ea

commit 9addf391236ba99c61d0046ddf50110f7be039ea
Author: Antonio Gomes <tonikitoo@igalia.com>
Date: Mon Nov 05 14:41:58 2018

[s13n][ios]Convert io/c/b/ui/authentication to IdentityManager

BUG= 889870 , 889869 

Change-Id: I8cfb5456ec39e0846f5d6dc56bca8a1e73749137
Reviewed-on: https://chromium-review.googlesource.com/c/1316933
Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Commit-Queue: Antonio Gomes <tonikitoo@igalia.com>
Cr-Commit-Position: refs/heads/master@{#605324}
[modify] https://crrev.com/9addf391236ba99c61d0046ddf50110f7be039ea/ios/chrome/browser/ui/authentication/BUILD.gn
[modify] https://crrev.com/9addf391236ba99c61d0046ddf50110f7be039ea/ios/chrome/browser/ui/authentication/authentication_flow_performer.mm
[modify] https://crrev.com/9addf391236ba99c61d0046ddf50110f7be039ea/ios/chrome/browser/ui/authentication/signin_earlgrey_utils.mm