add include to remove legacy flag

BUG=skia:

NOTRY=True

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4377

Change-Id: Ie3b173188041a8c37fc2252d257c1f3e1c2a4c84
Reviewed-on: https://skia-review.googlesource.com/4377
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed