Simplify array-span creation.
Simplify array-span creation.

SkMakeSpan can automatically deduce the length of our arrays; we don't
need to add an extra variable to tell it. (We could also have used
SK_ARRAY_COUNT to let the compiler automatically deduce the size.)

Change-Id: Ib0e86d18b8b4105824e97d6195cca7930ea1f1f3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/548782
Commit-Queue: Robert Phillips <95e8ac5504948c7bf91b22c16a8dbb7ae7c66bfd@google.com>
Reviewed-by: Robert Phillips <95e8ac5504948c7bf91b22c16a8dbb7ae7c66bfd@google.com>
Auto-Submit: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>
Commit-Queue: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>

google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia,google/skia