Reland "In GrSkSLFP, always use a coord transform"
Reland "In GrSkSLFP, always use a coord transform"

This reverts commit fd7fd960be695290dffe126d006fcbea80852527.

Change-Id: Id0f39dfd906f24e5c5eb054a28fc8e96ef73835e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/267036
Reviewed-by: Brian Salomon <61fabaaf0876044aeedfd8e351e485c028d69e7b@google.com>
Commit-Queue: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>

google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia