The Mojo module for NFC is currently device.nfc.mojom. It should become device.mojom, which is what is being used for all the other device features.
Note that we should wait to do this until porting NFC into the Device Service, when the dust will have settled on all the relevant mojoms being in the codebase.
Comment 1 by reillyg@chromium.org
, Apr 19 2017