R1:543354981e52

Adjust transformed URI in CSS

Summary: This one CSS file has a pre-transformed URI in it, just use a raw resource name. The tranform pipeline will fix it (and this URI is no longer correct).

Test Plan: Loaded some pages.

Reviewers: btrahan, chad

Reviewed By: chad

CC: chad, aran

Differential Revision: https://secure.phabricator.com/D7895