Disable extension_startup_unittests on linux
Disable extension_startup_unittests on linux

TBR=estade

Review URL: http://codereview.chromium.org/175014


git-svn-id: http://src.chromium.org/svn/trunk/src@24794 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: e46ff2a49032f7c2a8e0d0505b99d02f5e01b879
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