Bug 873955 - [System][Notification] Notification does not make sound whe...

https://bugzilla.mozilla.org/show_bug.cgi?id=873955

1. Title : [System][Notification] Notification does not make sound when silent mode is off.
2. Precondition : Set volume to non-silent level.
3. Tester's Action : Receive SMS from 3rd phone.
4. Detailed Symptom (ENG.) : Notice the SMS notification does not sound.
5. Expected : The SMS notification should sound when silent mode is off.
6.Reproducibility: Y
           1)Frequency Rate : 100%
7.Gaia Revision: a503d9a1d0a588f3689243c1ddc0f016ede51b9d
8.Personal email id:  hanj.kim25@gmail.com

This is a regression from Bug 867912.


The problem is in apps/system/js/notifications.js. 

The following needs to change 

NotificationScreen.silent = (value != 0);

to

NotificationScreen.silent = (value == 0);