drawfilter is legacy-guarded, no need for deprecated

Bug: skia:
Change-Id: Ic8dbe9aa043bd793e49975f5b6f08a0ac38e4faa
Reviewed-on: https://skia-review.googlesource.com/15185
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
4 files changed