Convert dmsaa to an SkSurfaceProp

Bug: skia:11396
Change-Id: I1c2a72d80679df1c11529d05cbe781f6dfae6a79
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/396810
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
16 files changed