GitLab

Ran locally and seems fixed. I think the cause was base::RunLOops which
used to be needed for changing tablet mode, but thats no longer the case
so they just messed up some other waits.

Bug: 1027899, 1027800
Change-Id: Icf6cfd70e0e2ef826a3767a20a7bca75f31aacd8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1947165Reviewed-by: Toni Baržić <tbarzic@chromium.org>
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721230}