Temporarily disable plumbing tests
Temporarily disable plumbing tests

These tests are failing due to a 404 while downloading
chrome image.  TBRing this change so that we can
verify the new git waterfall is otherwise healthy.

R=bradnelson@chromium.org

Review URL: https://codereview.chromium.org/519263003

git-svn-id: 84b3587ce119b778414dcb50e18b7479aacf4f1d@1601 7dad1e8b-422e-d2af-fbf5-8013b78bd812

dtkav/naclports,dtkav/naclports,kuscsik/naclports,Schibum/naclports,Schibum/naclports,yeyus/naclports,dtkav/naclports,kuscsik/naclports,dtkav/naclports,kuscsik/naclports,yeyus/naclports,Schibum/naclports,yeyus/naclports,dtkav/naclports,Schibum/naclports,yeyus/naclports,yeyus/naclports,kuscsik/naclports,yeyus/naclports,Schibum/naclports,Schibum/naclports,kuscsik/naclports