GitLab

This CL changes add account icon in account picker dialog to mobile
identity consistency project style.

Screenshots: https://crbug.com/1044614#c1
Bug: 1044614
Change-Id: I4684c23a1cedee2459b223c7ec10e14be2411324
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1995165
Commit-Queue: Alice Wang <aliceywang@chromium.org>
Reviewed-by: Boris Sazonov <bsazonov@chromium.org>
Reviewed-by: Tanmoy Mollik <triploblastic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742092}