Revert "Revert "Make DashOp a non-legacy GrMeshDrawOp.""

This reverts commit beae8a9faa2afcdbeeec96e658db7e113a4fa1c9.

Clean revert of revert.

Change-Id: Ibb486bf3411ed347b560fc110a2cfbb0e0caa4f2
Reviewed-on: https://skia-review.googlesource.com/22730
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
5 files changed