The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8cdfa6767f4e028cd0555db84fe27ab460a61abc

commit 8cdfa6767f4e028cd0555db84fe27ab460a61abc
Author: Sylvain Defresne <sdefresne@chromium.org>
Date: Wed Nov 21 13:27:31 2018

Convert PasswordStoreSigninNotifierImpl to IdentityManager

Add a new method OnPrimaryAccountSetWithPassword to
IdentityManager::Observer (with comments indicating
it only works for legacy sign-in workflow) and port
PasswordStoreSigninNotifierImpl to it.

Bug:  903870 ,  887438 ,  887441 
Change-Id: Ic79cff4ffdd341aedb22ee2c8abd40d309ee6fa4
Reviewed-on: https://chromium-review.googlesource.com/c/1344089
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Reviewed-by: Vaclav Brozek <vabr@chromium.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610029}
[modify] https://crrev.com/8cdfa6767f4e028cd0555db84fe27ab460a61abc/chrome/browser/password_manager/password_store_signin_notifier_impl.cc
[modify] https://crrev.com/8cdfa6767f4e028cd0555db84fe27ab460a61abc/chrome/browser/password_manager/password_store_signin_notifier_impl.h
[modify] https://crrev.com/8cdfa6767f4e028cd0555db84fe27ab460a61abc/components/signin/core/browser/signin_manager.cc
[modify] https://crrev.com/8cdfa6767f4e028cd0555db84fe27ab460a61abc/components/signin/core/browser/signin_manager_base.h
[modify] https://crrev.com/8cdfa6767f4e028cd0555db84fe27ab460a61abc/components/signin/core/browser/signin_manager_unittest.cc
[modify] https://crrev.com/8cdfa6767f4e028cd0555db84fe27ab460a61abc/services/identity/public/cpp/identity_manager.cc
[modify] https://crrev.com/8cdfa6767f4e028cd0555db84fe27ab460a61abc/services/identity/public/cpp/identity_manager.h