If it can be done with cURL calls and PHP you should be able to use CB Code Field and its Code Autocomplete on a text field. The alternative is you'll need to implement it entirely yourself. If it's JS based though you should be able to use text fields and then use CB Auto Actions to add the JS to the page. There's no official plans at this time to directly integrate with Googles API at this time though, but if easily doable with Code Autocomplete we might be able to provide a tutorial in the future.