Add a flaky expectation for filter-source-position.svg.
Add a flaky expectation for filter-source-position.svg.

TBR=thestig
BUG=30939
TEST=none
Review URL: http://codereview.chromium.org/1086003

git-svn-id: http://src.chromium.org/svn/trunk/src@42030 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ee0e8922d988d3504f0ab0cf753bbada35906b92
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