GTTF: Disable all download tests, they are broken just so much.
GTTF: Disable all download tests, they are broken just so much.

They don't wait until the download finishes,
so a "do you want to close the browser, you have pending downloads?"
dialog appears, which makes buildbots leak a process and become hosed.

TBR=ahendrickson

BUG=35275, 48913, 50060
TEST=ui_tests

Review URL: http://codereview.chromium.org/3301006

git-svn-id: http://src.chromium.org/svn/trunk/src@58225 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ec29175271768d2fab622763329e02907febe2a2
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