It has been a while since I have played with this specifically, but dragging an audio clip onto a MIDI track will do a nice conversion. It has only caught note on/off data, but this would work fine for drums (no pitch/mod wheel data).
IIRC, you may have to transpose MIDI notes, as they may not hit the correct note for drum maps. The ARA conversion has always done note pitch in that conversion for me, so the notes may need some transposition done afterwards to hit the correct drum trigger. This is something to always check, as you cannot blindly throw an audio-to-MIDI conversion into any MIDI track haphazardly. There may be a better way to do this, but I am not familiar with how to do it.