Adding method to check if call waiting tone should be played

+ This method will be used in StatusBarNotifier to determine when
call waiting tones should be played instead of the standard ringtone

Change-Id: I4ad55f3870de5e63d03f4a5e8534680fa24556bd
3 files changed
tree: 26cfe0ece4c8e622a314c613478ce97b36308456
  1. InCallUI/