mozilla-b2g/gaia — pull request #1785 by timdream (2012-06-19 07:06:44+00:00)
Title: SettingsListener: allow mutltiple callbacks bound to the same setting

I don't really know which modules will listens to the same setting (I bet it would), but I would like to patch `SettingsListener` before somebody hit some bug in the System app because of it.