Save off foreground user id before passing the message to the handler on am:...

Save off foreground user id before passing the message to the handler on am: eda5120b am: c9e4372f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/17749071



Change-Id: I47a482fab4eff07260e070cb0ca71e8e70bb8e0d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>