Disable InstantTest.DownloadOnEnter on Linux, as it's crashing.
Disable InstantTest.DownloadOnEnter on Linux, as it's crashing.

TBR=sky@chromium.org
BUG=77168
TEST=none
Review URL: http://codereview.chromium.org/6821080

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@81275 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser