Merge "Added API to specify if split-screen should exit on hide" into sc-dev am: 6cd63cb4ee

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/13522458

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8a25af7439c2823e0318ef04bbaf879029ce7138