Add missing #includes.

These headers are referenced without being directly #included. This was
noticed during a refactor.

Change-Id: I23420f1f2d02a428721b57d3195dae550effefa1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/306319
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2 files changed