Disable MultipleWorkers on Linux as it is failing sporadically.
Disable MultipleWorkers on Linux as it is failing sporadically.

BUG=30353
TEST=non

Review URL: http://codereview.chromium.org/503001

git-svn-id: http://src.chromium.org/svn/trunk/src@34571 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 15247b42b3b6e54bbf947029ec1bdb8aa2e11183
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