tree bba1536a1f33c0073765b1066e9588d4d0e47d6d
parent b23ae220918603276ded98bc054025830b2a7541
author Ying Zheng <yizheng@google.com> 1536946267 -0700
committer Ying Zheng <yizheng@google.com> 1537573241 +0000

Migrate user switcher to car userlib package.

Bug: 113868873
Test: build
Change-Id: I968094bba04873245a2bd17f58edaa9b251222b4
(cherry picked from commit a2530c2ab2aeb25ce741c367e2ee48703c2a0f17)