The top of the stack of PlayerRecord instances is the "promoted"
instance whose RemoteControlClient information is available
to RemoteController objects, only when it also has audio focus.
This change removes the condition on audio focus ownership:
- whenever the player record stack ordering changes, no need to
check if it also has audio focus
- since the player record and audio focus stacks operate separately,
there is no need to synchronize access to both stacks.
Change-Id: I668f2aa2950f19f8c2a30bc59c7352246edcc56e
b416838051