Activity Action: Shows a ringtone picker.
Input: RingtoneManager.ExtraRingtoneExistingUri, RingtoneManager.ExtraRingtoneShowDefault, RingtoneManager.ExtraRingtoneShowSilent, RingtoneManager.ExtraRingtoneType, RingtoneManager.ExtraRingtoneDefaultUri, RingtoneManager.ExtraRingtoneTitle,