I'm sure I'm not the only one with this problem but can't find any reference to it by searching.
In order to verify my ownership of my domain, Google Chrome for Business requires me to put a metatag in the HEAD of my site. It's the normal format;
<META NAME= etc
But I can't see how to do this within ATO. I'm sure I'm missing something, but a straightforward reply here might save more and more people asking as Chrome takes off.