Merge "Set custom task transition spec when taskbar is visible" into sc-v2-dev am: aae8a2a2a5 am: 75a4280b49

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

Change-Id: I4475a1661a2abeee5a0dac5de29667c8f34b78e5