Merge "Support to launch app pair from overview with recorded split ratio." into sc-v2-dev am: 71b7d1537d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16331944

Change-Id: Ibcfb68a698f52a1efcc45088e5db42b48b17e79e