headers: fix

Change-Id: I0cd10f735c25686e41831ad1d0c99981c9d22d9a
Reviewed-on: https://skia-review.googlesource.com/11383
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
3 files changed