Update Mac 10.6 moz expectations.
Update Mac 10.6 moz expectations.

Gradual increase of moz test results over time within
variance.

BUG=none
TEST=mac10.6/moz is green
TBR=nsylvain@chromium.org

Review URL: http://codereview.chromium.org/2814048

git-svn-id: http://src.chromium.org/svn/trunk/src@51606 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 62487170f47cc23fb2add7b9f0e2ee8d91f14116
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser