Add a real pref for SMS Connect and update settings UI to use it.


Bug: 718617
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I5dfa501f31a8ba0abd7341bdb60a4874fb1c2cde
Reviewed-on: https://chromium-review.googlesource.com/651588
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Luis Hector Chavez <lhchavez@chromium.org>
Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: Oren Blasberg <orenb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#501801}
6 files changed