Merge "Let Launcher able to receive task launching callback(4/N)" into sc-dev am: 23c0fc4ac0

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13425371

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia51968691d0932ca02b8de4721ac14fa39326e2e