Improvements to texture_domain GMs

Rename to texel_subset.

Test different x/y wrap modes.

Use a real image that is non-square.

Add dividers to group MakeTexelSubset() with Make() reference draw.

Use a smaller image, fewer matrices, and only one subset rect to
make room for the additional mode combinations.

Change-Id: I3fab54cb7f160b92c7e5192e64a8a09f5c837492
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/267976
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
3 files changed