tree d815e5b108797f4af317b6c643e593511d5fb9a8
parent 4dd25c554f8ad60fa9604236f3f71f97cc3e0ebe
author Andrew Lee <anwlee@google.com> 1414622931 -0700
committer Andrew Lee <anwlee@google.com> 1414629947 -0700

Create util for VoicemailProviderSetting operations.

This is mostly moving functionality from CallFeaturesSetting into a
utility class. I tried to tidy up some names/styling, but the logic
is unchanged.

These are essentially stand-alone functions which manipulate the
SharedPreferences for VoicemailProviderSettings. I considered adding
them as static methods on VoicemailProviderSettings, but since they
manipulate the storage of VoicemailProviderSettings at a different
level, it seemed like better organization to put them by themselves.

Bug: 17019623
Change-Id: I6d57dbc61d4eb07d0a433e83d82aaa2a9a96fd4e