Rewrite #includes to satisfy presubmit.

For reasons I don't understand, rewrite-includes suddenly started
detecting these experimental files as needing their includes rewritten.

Change-Id: Ie62e8861169dfb988840e74976248992633874e2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/455160
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
3 files changed