[automerger skipped] Add tests for handle methods in BluetoothMapContentObserver am: 6497d64f -s ours

am skip reason: Merged-In Ib427f8bed4a1b819908ac3fdf1c7667d9c51e1c2 with SHA-1 6e354f7e is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/20842412



Change-Id: I4c2a8dec1b687ec9c52dec06ffa061d7208e22f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>