Check all conditions for shader wrap to disable aniso
Check all conditions for shader wrap to disable aniso

In particular fixes issue on GLs that don't support non-clamp modes with
npot textures.

Bug: skia:13036
Change-Id: I196a6d726ac82cf9f6bb36b90a9b05f3a67837de
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/535957
Reviewed-by: Michael Ludwig <cb1f3dd24de0f0b611b26bc28bec758a551d9b7d@google.com>
Commit-Queue: Brian Salomon <61fabaaf0876044aeedfd8e351e485c028d69e7b@google.com>

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