Update GrLatticeOp to not read from the gpu vertex buffer.

Change-Id: I93e90da7762c379486fd1a329ebf984e93578c69
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/364917
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
1 file changed