Update webkit.org lines to match the bots and delete cross-platform failures.

Avoided touching tests that look like they may pass if we just unskip them.

BUG=308779

Review URL: https://codereview.chromium.org/32433003

git-svn-id: svn://svn.chromium.org/blink/trunk@160240 bbb929c8-8fbe-4397-9dbb-9b2b20218538