Merge "Support autoEnterPip without source rect hint" into sc-dev am: 0f16e51451

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13524927

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ibd08c63eb219320ea52f701d7b59e0646dff449d