commit 025e1c63c6c66cac5830c8e435588ba160830173
author Lucas Tenório <ltenorio@chromium.org> Fri Jun 14 21:47:32 2019
committer Commit Bot <commit-bot@chromium.org> Fri Jun 14 21:47:32 2019
tree b4350183aa4c8cb7b9b0fdde4331e9d7c0ae4bf7
parent be5002f4c267c342de50f566fb6d94d903328094

Fix Supervision Onboarding presentation.

This change fixes an issue where the supervision onboarding would not
be rendered since it had width and height set to 0.

This was caused by a bad interaction between changes:
https://chromium-review.googlesource.com/c/chromium/src/+/1646076
https://chromium-review.googlesource.com/c/chromium/src/+/1659469

One of them fixed a bug in display_manager.js when calculating the
size of a screen.

The other change inadvertently set the screen to an empty state
during initialization so its size was calculated as (0, 0).
This was not detected since the bug fixed by the previous change
caused a JS exception right before the code the code that sets
the size of the inner container[1].

This change just sets a reasonable size for the supervision
onboarding screen by showing the loading state at initialization.

[1]: https://cs.chromium.org/chromium/src/ui/login/display_manager.js?rcl=c0937666bedbe5f4bbbc13bf67931b2715476f9f&l=787

Bug: 958995
Change-Id: I5e2c43a6cbc7a400e959a9d360da597ec43a3d60
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1658912
Commit-Queue: Michael Giuffrida <michaelpg@chromium.org>
Reviewed-by: Michael Giuffrida <michaelpg@chromium.org>
Auto-Submit: Lucas Tenório <ltenorio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#669388}