overview: Fix minimized window not showing correctly in overview.

Test: manual
Bug: 966682
Change-Id: I9671e9922c9b300806afa8feb9e10cf4ba53f763
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1628968
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#663250}
2 files changed