Ignore local matrix when choosing CT uni type with explicit sampling.

The GP's local matrix is ignored when explicitly sampling FPs.

Add asserts to check consistency.

Change-Id: I6fc063e223affa3115f00eb63454ae5e6c1c27eb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/278779
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
1 file changed