Make GrProgramInfo take pointers to the GrPipeline and the GrPrimitiveProcessor

Hopefully this makes it clearer that the GrProgramInfo isn't copying these
objects.

Bug: skia:9455
Change-Id: Id43b7978d63b6d53d531601f3446745f33afcf2d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/254970
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
15 files changed