Merge "Detect 3p launcher move-to-front during recents." into udc-dev am: 76fad89c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23608057



Change-Id: I073e912e11232cf630750e9f7c67341c95729d46
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>