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: Ic2f254e0fa7cf210a5c845b1d7598441dea9ddb1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>