Mark destroy-during-npp-new test as flaky on Windows too.
Mark destroy-during-npp-new test as flaky on Windows too.

BUG=21841
TEST=none
TBR=senorblanco
Review URL: http://codereview.chromium.org/235026

git-svn-id: http://src.chromium.org/svn/trunk/src@27291 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 6cdc28642d9c7afffb201e815d8c9d32a573eb09
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