Use GrWangsFormula::conic in indirect tessellator

Previously we were ignoring the conic weight and using the regular
quadratic Wang's formula for conic segments. This CL uses the new
specialized formula for conics.

Bug: skia:10419
Change-Id: I2929135decc539b9ecf27516a0d9d231be3f7494
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/366405
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
1 file changed