Revert "Revert "move onto new factories for SkMatrix""

This reverts commit c80ee456adf664c4a62fa2ccaeaf157c723ed656.

fix: update flutter's gn file to add guard

Change-Id: Iac5171c8475d9a862d06255dab1c6f38f10de2f2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/291361
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
112 files changed