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: I73b30a725d624a34012ea580af48171ba560f997