Hide this, and don't expose method definitions of exported class.

Change-Id: I52ff833c9b552f4593dedf771f6370bdeedf2b7d

svtools/inc/svtools/treelistbox.hxx

@@ -411,7 +411,7 @@ public:
     sal_uLong           GetChildCount( SvTreeListEntry* pParent ) const;
     sal_uLong           GetLevelChildCount( SvTreeListEntry* pParent ) const;
 
-    SvViewDataEntry* GetViewDataEntry( SvTreeListEntry* pEntry ) const { return (SvViewDataEntry*)SvListView::GetViewData(pEntry); }
+    SvViewDataEntry* GetViewDataEntry( SvTreeListEntry* pEntry ) const;
     SvViewDataItem*  GetViewDataItem(SvTreeListEntry*, SvLBoxItem*);
     const SvViewDataItem*  GetViewDataItem(const SvTreeListEntry*, const SvLBoxItem*) const;
 

svtools/source/contnr/treelistbox.cxx

@@ -964,6 +964,11 @@ sal_uLong SvTreeListBox::GetLevelChildCount( SvTreeListEntry* _pParent ) const
     return nCount;
 }
 
+SvViewDataEntry* SvTreeListBox::GetViewDataEntry( SvTreeListEntry* pEntry ) const
+{
+    return (SvViewDataEntry*)SvListView::GetViewData(pEntry);
+}
+
 SvViewDataItem* SvTreeListBox::GetViewDataItem(SvTreeListEntry* pEntry, SvLBoxItem* pItem)
 {
     return const_cast<SvViewDataItem*>(static_cast<const SvTreeListBox*>(this)->GetViewDataItem(pEntry, pItem));