Support for direct gaussian blur  evaluation

Change-Id: I1b00ba2720648b75fce47d3f4d0f56fb8f2cd171
Reviewed-on: https://skia-review.googlesource.com/67041
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Herb Derby <herb@google.com>
2 files changed