going private for m_peer to give a foundation for better encapsulation

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67230 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/dataview_osx.cpp

@@ -365,7 +365,7 @@ bool wxDataViewCtrl::Create(wxWindow *parent,
 {
   if (!(wxControl::Create(parent,id,pos,size,style,validator,name)))
     return false;
-  m_peer = ::CreateDataView(this,parent,id,pos,size,style,GetExtraStyle());
+  SetPeer(::CreateDataView(this,parent,id,pos,size,style,GetExtraStyle()));
 
   MacPostControlCreate(pos,size);