The creation can be moved to the playback thread (to guarantee it
happens in sync other initialization after playback start) and the
potentially blocking calls to the reporting methods can be moved
to the generic shared BackgroundExecutor (it can't use the playback
thread because it no longer exists when the session is ended after
the player is released).
PiperOrigin-RevId: 726872818
(cherry picked from commit d386e002d2b34817178d088f277ced3bf3943ef2)
841e27ae5c