The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/tast-tests/+/48eb6d4631f2aba2406cccf81cd66c3f99a78006

commit 48eb6d4631f2aba2406cccf81cd66c3f99a78006
Author: Hidehiko Abe <hidehiko@chromium.org>
Date: Tue Oct 02 20:23:03 2018

tast-test: Port ui.SupervisedUserCrash and ui.SupervisedUserCrashARC

These are the port from autotest
- desktopui_ExitOnSupervisedUserCrash
- desktopui_ExitOnSupervisedUserCrash/control.arc

Also, what desktopui_ExitOnSupervisedUserCrash_P does is exactly as same as
desktopui_ExitOnSupervisedUserCrash, so this CL covers them, too.

BUG= chromium:887443 
TEST=Ran on DUT.

Change-Id: Id62dc9b56be7b7ebbdaadd343ebb42f270cabcc1
Reviewed-on: https://chromium-review.googlesource.com/1253963
Commit-Ready: Hidehiko Abe <hidehiko@chromium.org>
Tested-by: Hidehiko Abe <hidehiko@chromium.org>
Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>

[add] https://crrev.com/48eb6d4631f2aba2406cccf81cd66c3f99a78006/src/chromiumos/tast/local/bundles/cros/ui/supervised/test.go
[add] https://crrev.com/48eb6d4631f2aba2406cccf81cd66c3f99a78006/src/chromiumos/tast/local/bundles/cros/ui/supervised_user_crash.go
[modify] https://crrev.com/48eb6d4631f2aba2406cccf81cd66c3f99a78006/src/chromiumos/tast/local/session/session_manager.go
[add] https://crrev.com/48eb6d4631f2aba2406cccf81cd66c3f99a78006/src/chromiumos/tast/local/bundles/cros/ui/supervised_user_crash_arc.go