Add nvprmsaa4 and nvprmsaa16 configs to bench_pictures

Add nvprmsaa4 and nvprmsaa16 configs to bench_pictures.

R=bsalomon@google.com

Author: kkinnunen@nvidia.com

Review URL: https://codereview.chromium.org/189263012

git-svn-id: http://skia.googlecode.com/svn/trunk@13708 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed