Mark BrowserTest.SingleBeforeUnloadAfterWindowClose as flaky.
Mark BrowserTest.SingleBeforeUnloadAfterWindowClose as flaky.

TBR=creis

BUG=27039
TEST=none
Review URL: http://codereview.chromium.org/372046

git-svn-id: http://src.chromium.org/svn/trunk/src@31391 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: e8b24ff3bdc0311b25e1a442da79effe72ecab09
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