GitLab

Makes home scale and fade in animation run in parallel with overview
fadeout (instead of waiting for the overview animation to end).

Change-Id: Ica9bd3cc98faf5dd2827fe6871a1f4b7b5d7c953
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1918664Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Commit-Queue: Toni Baržić <tbarzic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#715826}