Reviewed by Chris Fleizach.

        [GTK] Consider rows being ignored when adding children to tables
        https://bugs.webkit.org/show_bug.cgi?id=62718

        Unskip accessibility test that will be passing from now on.

        * platform/gtk/Skipped: Unskipped passing test.
2011-06-24  Mario Sanchez Prada  <msanchez@igalia.com>

        Reviewed by Chris Fleizach.

        [GTK] Consider rows being ignored when adding children to tables
        https://bugs.webkit.org/show_bug.cgi?id=62718

        Hide row objects in tables in GTK's accessibility wrapper.

        This is a different approach in the way WebCore's accessible
        rows are exposed to assistive technologies in the GTK port,
        since from now on those objects are kept in WebCore (they do not
        declare to ignore accessibility) and just bypassed in the mapping
        to ATK, allowing to hide them in the ATK hierarchy while, at the
        same time, keeping them internally to be able to provide enough
        information to determine tables related information, such as rows
        counting or finding an cell for specific coordinates.

        * accessibility/gtk/AccessibilityObjectAtk.cpp:
        (WebCore::AccessibilityObject::accessibilityPlatformIncludesObject):
        Do not ignore accessibility for table rows here.

        * accessibility/gtk/AccessibilityObjectWrapperAtk.cpp:
        (webkit_accessible_get_parent): Bypass rows when needed.
        (getNChildrenForTable): New, find the number of children for a
        table, which will be the addition of all cells for its rows.
        (webkit_accessible_get_n_children): Call to getNChildrenForTable
        for accessibility tables if needed.
        (getChildForTable): New, bypass rows when needed, retrieving
        cells as if they were direct children for tables.
        (webkit_accessible_ref_child): Call to refChildForTable if needed.
        (getIndexInParentForCellInRow): New, get the index for a given
        cell in its parent table, considering other rows' cells.
        (webkit_accessible_get_index_in_parent): Call to
        getIndexInParentForCellInRow if needed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@89660 268f45cc-cd09-0410-ab3c-d52691b4dbfc