Merge "Fix race in media button intent registration" into jb-mr2-dev

    oneway void dispatchMediaKeyEvent(in KeyEvent keyEvent);

    void dispatchMediaKeyEventUnderWakelock(in KeyEvent keyEvent);

    oneway void registerMediaButtonIntent(in PendingIntent pi, in ComponentName c);

           void registerMediaButtonIntent(in PendingIntent pi, in ComponentName c);

    oneway void unregisterMediaButtonIntent(in PendingIntent pi,  in ComponentName c);

    oneway void registerMediaButtonEventReceiverForCalls(in ComponentName c);