https://chromium-review.googlesource.com/c/chromium/src/+/1170035

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d8f67e1219b1d9fd8e54f2d6963d423de6110b1d

commit d8f67e1219b1d9fd8e54f2d6963d423de6110b1d
Author: Jacob Dufault <jdufault@google.com>
Date: Fri Aug 10 18:07:19 2018

cros: Do not play animations for non-focused users.

Bug:  872923 
Change-Id: I7071921895fcd017a65286fce4b565ad8f96de76
Reviewed-on: https://chromium-review.googlesource.com/1170035
Commit-Queue: Jacob Dufault <jdufault@chromium.org>
Reviewed-by: Xiaoyin Hu <xiaoyinh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582245}
[modify] https://crrev.com/d8f67e1219b1d9fd8e54f2d6963d423de6110b1d/ash/login/ui/animated_rounded_image_view.h
[modify] https://crrev.com/d8f67e1219b1d9fd8e54f2d6963d423de6110b1d/ash/login/ui/login_user_view.cc