Try out SkMatrix::Concat.

This should RVO to the same as doing it on the stack with setConcat.

BUG=skia:
R=reed@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/293693002

git-svn-id: http://skia.googlecode.com/svn/trunk@14782 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed