use DECLARE_NO_COPY_CLASS() where applicable (patch 633384)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18525 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/ole/dataobj.h

@@ -58,6 +58,8 @@ public:
     virtual size_t GetBufferOffset( const wxDataFormat& format );
 private:
     IDataObject *m_pIDataObject; // pointer to the COM interface
+
+    DECLARE_NO_COPY_CLASS(wxDataObject)
 };
 
 #endif  //_WX_MSW_OLE_DATAOBJ_H