TrkDetDescrInterfaces → TrkVolumes Relation

File in Tracking/TrkDetDescr/TrkDetDescrInterfaces/TrkDetDescrInterfaces	Includes file in Tracking/TrkDetDescr/TrkVolumes
ITrackingVolumeHelper.h	TrkVolumes / BoundarySurface.h
ITrackingVolumeHelper.h	TrkVolumes / BoundarySurfaceFace.h