Mark video-source-type as also being flaky on Linux.
Mark video-source-type as also being flaky on Linux.

BUG=35858
TEST=itself

Review URL: http://codereview.chromium.org/976002

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@41624 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