GitLab

Do not allow to show launcher if overview is still animating.

Test: manual
Bug: 905527
Change-Id: I1bc188600d038d4f2df20c224910ae10a8b61e59
Reviewed-on: https://chromium-review.googlesource.com/c/1338235Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608661}