2.) editing/selection/extend-after-mouse-selection.html (new test introduced in r54980)
original changeset: http://trac.webkit.org/changeset/54980
skipped them by: http://trac.webkit.org/changeset/55010
editing/selection/extend-selection.html has been fixed since the bug 49849 has been resolved.
This test is missing leapForward between mouseDown & mouseUp. Could you try adding eventSender.leapForward(100) between each and see if it passes? Also, we probably need to add 1 or 2 pixels to startTarget.offsetLeftwhen moving mouse to.
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