GrFP::coordTransformsApplyToLocalCoords() -> GrFP::isSampledWithExplicitCoords()

Also rename and flip meaning of the internal flag.

Change-Id: Icf3437fa271da26037690c9a5083adb862a69233
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/272379
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
7 files changed