Fix by Mitz Pettel, reviewed by Darin.

    Fix by Mitz Pettel, reviewed by Darin.

        - fix http://bugzilla.opendarwin.org/show_bug.cgi?id=7589
          Mouse moved events do not work in DumpRenderTree

WebKitTools:
        * DumpRenderTree/DumpRenderTree.m:
        (-[EventSendingController mouseMoveToX:Y:]): Pass the correct windowNumber in the event.

LayoutTests:
        * fast/css/hover-subselector-expected.txt: Updated results.
        * fast/css/hover-subselector.html: Changed to work with the new mechanism.
        * fast/events/event-sender-mouse-moved-expected.checksum: Added.
        * fast/events/event-sender-mouse-moved-expected.png: Added.
        * fast/events/event-sender-mouse-moved-expected.txt: Added.
        * fast/events/event-sender-mouse-moved.html: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@13139 268f45cc-cd09-0410-ab3c-d52691b4dbfc