wrap field in VclPtr

Change-Id: Ica765d313edaf45eefeee49b2c40b1b595fa9daf
diff --git a/sw/source/uibase/inc/workctrl.hxx b/sw/source/uibase/inc/workctrl.hxx
index 31638e2..ba68c1f 100644
--- a/sw/source/uibase/inc/workctrl.hxx
+++ b/sw/source/uibase/inc/workctrl.hxx
@@ -114,7 +114,7 @@ class SwScrollNaviPopup;

class SwScrollNaviToolBox : public ToolBox
{
    SwScrollNaviPopup *m_pNaviPopup;
    VclPtr<SwScrollNaviPopup> m_pNaviPopup;

    virtual void    MouseButtonUp( const MouseEvent& rMEvt ) SAL_OVERRIDE;
    virtual void    RequestHelp( const HelpEvent& rHEvt ) SAL_OVERRIDE;
@@ -125,6 +125,8 @@ public:
        , m_pNaviPopup(pNaviPopup)
    {
    }
    virtual ~SwScrollNaviToolBox();
    virtual void dispose() SAL_OVERRIDE;
};

class SwScrollNaviPopup : public SfxPopupWindow
diff --git a/sw/source/uibase/ribbar/workctrl.cxx b/sw/source/uibase/ribbar/workctrl.cxx
index a6c9415..8fe62f9 100644
--- a/sw/source/uibase/ribbar/workctrl.cxx
+++ b/sw/source/uibase/ribbar/workctrl.cxx
@@ -510,6 +510,17 @@ IMPL_LINK(SwScrollNaviPopup, SelectHdl, ToolBox*, pSet)
    return 0;
}

SwScrollNaviToolBox::~SwScrollNaviToolBox()
{
    disposeOnce();
}

void SwScrollNaviToolBox::dispose()
{
    m_pNaviPopup.disposeAndClear();
    ToolBox::dispose();
}

void SwScrollNaviToolBox::MouseButtonUp( const MouseEvent& rMEvt )
{
    ToolBox::MouseButtonUp(rMEvt);
@@ -522,7 +533,6 @@ void  SwScrollNaviToolBox::RequestHelp( const HelpEvent& rHEvt )
    SetItemText(NID_NEXT, SwScrollNaviPopup::GetQuickHelpText(true));
    SetItemText(NID_PREV, SwScrollNaviPopup::GetQuickHelpText(false));
    ToolBox::RequestHelp( rHEvt );

}

OUString SwScrollNaviPopup::GetQuickHelpText(bool bNext)