update ApplyMatrix signature

Change-Id: I92b12cba7dbb14c07174a77befd9dfddaec629af
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/298636
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
5 files changed