R1:99ab11e97c30

Add a defualt view policy for Pholio

Summary: Similar to D8110, but for Pholio. Also an IRC user request.

Test Plan: Set setting to something unusual, created a new mock.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D8111