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

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



Change-Id: I0ffeeded799d69eca66cf4ec4a9de36821d594e7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>