Reviewed by Maciej.

    Reviewed by Maciej.

        - fix http://bugs.webkit.org/show_bug.cgi?id=16266
          <rdar://problem/5625279> REGRESSION: crash loading CNN.com at
          Interpreter::createObjectsForGlobalObjectProperties()

        I don't know how to reproduce this in a test.

        * bindings/js/JSDocumentCustom.cpp: (WebCore::JSDocument::mark):
        Call JSEventTargetNode::mark instead of DOMObject::mark. There's no difference
        right now, but it's best to call your base class, not your base's base.

        * bindings/js/kjs_events.h: Removed unneeded virtual from the
        JSUnprotectedEventListener::mark() function; it neither derives from or is
        derived from anyone else with a mark() function so there's no need for virtual.

        * bindings/js/kjs_window.cpp: (KJS::Window::mark): Call JSGlobalObject::mark,
        not JSObject::mark. This is the actual bug fix.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@28482 268f45cc-cd09-0410-ab3c-d52691b4dbfc