//_____________________________________________________________________________
void
-AliMUONPainterDataSourceFrame::DataMakerWasUnregistered(AliMUONVTrackerDataMaker* maker)
+AliMUONPainterDataSourceFrame::DataMakerWasUnregistered(const AliMUONVTrackerDataMaker* maker)
{
/// Update ourselves as a data reader was deleted