tree 373a86179c06353d0ee55a3f3f60cf163e60dad0
parent 3c16d20d2996ae89616c064ae6f972563d115543
author James Lemieux <jplemieux@google.com> 1441064178 -0700
committer James Lemieux <jplemieux@google.com> 1441131230 -0700

Simplify code that adds None as a valid timer ringtone

- None option is added to picker by default, remove code that
   manually added it
- Replace NO_RINGTONE_URI constant in TimerRingtonePreference
   with test method: DataModel.isSilentTimerRingtoneUri(uri)

Bug: 23499698
Change-Id: Id45a24bee607edd8295c2a31785e55d67b44e8b0