Add more stub classes

Bug: skia:12466
Change-Id: Iaa8431bf6fbe20c30b34a90a5a55f6f89723aa30
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/451257
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
10 files changed