Merge changes I4544a721,I5c9515fa,I0fac4a9e,I72f59b30,I41bdd086, ... into main

* changes:
  HeadsetClient Test: help formatter to be pretty
  HeadsetClient Test: sendMessage process it
  HeadsetClient Test: uniform mocking with doReturn
  HeadsetClient Test: remove flaky test
  HeadsetClient Test: import BluetoothProfile
  HeadsetClient Test: use test looper
  HeadsetClient Test: force intent order
  HeadsetClient Test: remove clearInvocation