Fold SkMatrixProvider into SkBaseDevice and remove it.

Bug: skia:14076
Change-Id: I7d32729afdab6b8ffe0a1a7c9339f88569826bfd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/639648
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@google.com>
6 files changed