Update test_expectations.txt
Update test_expectations.txt

Remove passing JS tests and update a comment about when to
remove some suppressions.

TBR=zmo

Review URL: http://codereview.chromium.org/3346004

git-svn-id: http://src.chromium.org/svn/trunk/src@58389 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b9547b8f2108327eae4c9a935e941e4c27bd5c76
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