GitLab

The Files app, as well as other apps, if they're evicted due to
being occluded by other windows, will show as empty for a second or
more in overview until reloaded.

This CL makes them behave the same way as browser windows, that is
they show stale contents until reloaded.

BUG=986085, 866622
TEST=Manually, follow steps on bug, and note the issue no longer shows.

Change-Id: If9a2b26b914fe55672d15d4b560cbe6d7e996591
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1711843Reviewed-by: kylechar <kylechar@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Ken Buchanan <kenrb@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Reviewed-by: Istiaque Ahmed <lazyboy@chromium.org>
Commit-Queue: Ahmed Fakhry <afakhry@chromium.org>
Cr-Commit-Position: refs/heads/master@{#682390}