spanning colgroups.

        Also make sure colgroups get an actual span of 1 (instead of incorrectly
        giving them a span of 0).

        Reviewed by mitz

        fast/table/colgroup-spanning-groups-rules.html

        * html/HTMLTableColElement.cpp:
        (WebCore::HTMLTableColElement::HTMLTableColElement):
        * rendering/RenderTable.cpp:
        (WebCore::RenderTable::colElement):
        * rendering/RenderTable.h:
        * rendering/RenderTableCell.cpp:
        (WebCore::RenderTableCell::collapsedLeftBorder):
        (WebCore::RenderTableCell::collapsedRightBorder):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@21615 268f45cc-cd09-0410-ab3c-d52691b4dbfc