HTTPS UI for applicable Wikipedia Zero configurations.

* HTTPS now supported for some W0 carriers.
* This patch restores hidden elements where possible.
* Dependency: I9db747c37a30d0ec1452ad0dacea094a7ec63721

Change-Id: I98e38fa651990a4efb5ab10bc34d5377b4edebcf
Merge "HTTPS UI for applicable Wikipedia Zero configurations."