CCPR: Merge triangle hull and edge shaders

Bug: skia:
Change-Id: I728454220781fa947fb6562c85c5c1ec54a83754
Reviewed-on: https://skia-review.googlesource.com/86420
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
7 files changed