AthDevice::IMemoryResourceProvider Node1 AthDevice::IMemoryResource Provider   + ~IMemoryResourceProvider() + mr() Node2 AthDevice::IMemoryResourceSvc   + DeclareInterfaceID() + ~IMemoryResourceSvc() Node1->Node2 Node3 AthDevice::IMemoryResourceTool   + DeclareInterfaceID() + ~IMemoryResourceTool() Node1->Node3