GitLab

Converting the method to a free function allows to decouple
AccountInfo from AccountId, eventually allowing to move it
to services/identity/public/cpp or even converting to the
mojo structure.

Bug: none
Change-Id: I020dad29ae286cd9da23c819ce0f32c57da3fb8c
Reviewed-on: https://chromium-review.googlesource.com/1124453Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#574184}