Speculative Mac 10.6 fix: disable medium & high filter quality tests.

BUG=skia:
TBR=mtklein@google.com

Review URL: https://codereview.chromium.org/211693003

git-svn-id: http://skia.googlecode.com/svn/trunk@13947 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed