Merge "Set custom task transition spec when taskbar is visible" into sc-v2-dev am: aae8a2a2a5

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15972977

Change-Id: I5433f900f341004f6dd2ee387dae36f6d31b63c5