tree 150f643cf67aee21a2ac730d3f7b1f6cada7db47
parent 03bacec1394032712c534605476fb634b85eee28
author twyen <twyen@google.com> 1529955386 -0700
committer Copybara-Service <copybara-piper@google.com> 1530045728 -0700

Refactor ContactPreference

Moving it outside contacts.commons reduces dependency to legacy code. Also removed redundant implementations such as caching SharedPreferences (it is already cached), custom ListPreferences (standard ListPreferences already have what we want), and corrected preference storage location (allow standard ListPreferences to work)

TEST=TAP
Test: TAP
PiperOrigin-RevId: 202000393
Change-Id: I45374e610b3510784b5a4da92e5d8462cbfc92bb