R1:71e4870a8e06

Fix OAuth Facebook Phame property access

Summary: Ref T1536. This is missing a call.

Test Plan: Viewed a public blog with Facebook comments.

Reviewers: btrahan, chad

Reviewed By: chad

CC: aran

Maniphest Tasks: T1536

Differential Revision: https://secure.phabricator.com/D6288