Summary: Signed-off-by: Nicholas Ormrod <njormrod@fb.com>

Test Plan: Clicked link, gtest started downloading

Reviewed By: markisaa@fb.com

Subscribers: sdwilsh, folly-diffs@, yfeldblum

FB internal diff: D1901849

Tasks: 6255850

Signature: t1:1901849:1426097071:e887ed8749c70d5e15877082ac0175ce3b56647e