GitLab

If overview mode is opened behind the current dragged window, we should
not do the animation when entering overview.

Bug: 823769
Test: None
Change-Id: I1d89bcdc27ea784449698183e026aa63f1c2cf2c
Reviewed-on: https://chromium-review.googlesource.com/1157289
Commit-Queue: Xiaoqian Dai <xdai@chromium.org>
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579877}