Add LayoutTests/media/video-seeking.html to the flaky list because it keeps failing on Linux.
Add LayoutTests/media/video-seeking.html to the flaky list because
it keeps failing on Linux.

BUG:9798


git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@27959 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