Add IdentityController to provide user's given/display name.

This interface will be expanded to proxy calls to IdentityAcessor so
that we have more control over what is called and be able to record

Bug: 927809
Change-Id: Ifb33c170b17b8ab7e3dbcb89a5fc47288f73814a
Reviewed-by: Michael Giuffrida <>
Reviewed-by: Alexander Alekseev <>
Reviewed-by: Mustafa Emre Acer <>
Commit-Queue: Bruno Santos <>
Cr-Commit-Position: refs/heads/master@{#661335}
13 files changed