cleanup: fix gm's use of ErrorBitfield to be consistent (it's a bitfield, not an enum)
Review URL: https://codereview.chromium.org/12640004

git-svn-id: http://skia.googlecode.com/svn/trunk@8028 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed