Merge "Send client relaunch event to WMCore." into tm-dev am: a688a749 am: ad95d22b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18367863



Change-Id: I7e0cbe1713b18456605b17098ea8f3e1edcc4ed6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>