Reviewed by David Hyatt.

        Miscellaneous cleanup of DOMWindow related functions.

        * bindings/js/JSDOMGlobalObject.cpp:
        (WebCore::JSDOMGlobalObject::~JSDOMGlobalObject): Fix poorly named variables.
        * bindings/js/JSDOMWindowBase.cpp:
        (WebCore::JSDOMWindowBase::supportsProfiling): Don't jump through hoops
        checking for null frames if the build does not support profiling.
        (WebCore::JSDOMWindowBase::clear): Use setCurrentEvent(0) instead of calling
        clearHelperObjectProperties().  It is clearer.
        * bindings/js/JSDOMWindowBase.h:
        Removed now unused clearHelperObjectProperties() function, empty disconnectFrame()
        function, and the empty destructor.
        * bindings/js/JSDOMWindowShell.cpp:
        * bindings/js/JSDOMWindowShell.h:
        Remove disconnectFrame() which only called JSDOMWindowBase::disconnectFrame(), which
        is a no-op.
        * page/Frame.cpp:
        (WebCore::Frame::~Frame):
        (WebCore::Frame::pageDestroyed):
        Remove calls to JSDOMWindowShell::disconnectFrame() which only called
        JSDOMWindowBase::disconnectFrame(), which is a no-op.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@44215 268f45cc-cd09-0410-ab3c-d52691b4dbfc