Merge "Add jank instrument support for split screen" into tm-dev am: 8edc0dfc

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/17818645



Change-Id: I0f0947fa4e7d90eecb1d7e203a30b81fefec5317
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>