put sksl->glsl modifiers in correct order

BUG=skia:6352

Change-Id: I7cdf6fa9c5b48fd2686c5cfc28c594bd291feea5
Reviewed-on: https://skia-review.googlesource.com/9520
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
1 file changed