Scrub DeviceCM

* remove unused fMatrix, fMatrixStorage
* fPaint  -> std::unique_ptr<>
* fDevice -> sk_sp<>

Change-Id: I790b54bfc4d8154216e620a8c1642f3955fe7be0
Reviewed-on: https://skia-review.googlesource.com/14624
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
1 file changed