Add config msaa4 to gm (not run by default) and make MSAA configs not run unless sample count is <= the max. Review URL: https://codereview.chromium.org/12554012
Add config msaa4 to gm (not run by default) and make MSAA configs not run unless
sample count is <= the max.
Review URL: https://codereview.chromium.org/12554012

csulmone/skia,csulmone/skia,csulmone/skia,csulmone/skia