converted vertex shaders to device coords

Bug: skia:6239
Change-Id: I1a3b67fe84d208d426d71deb7aea6b0cd433af37
Reviewed-on: https://skia-review.googlesource.com/75501
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
11 files changed