title: Chrome Web Store Payments Free trial for Extension
body: <p>I'm trying to convert my Google Chrome Extension, which is published in the Chrome Web Store, into a Free Trial using their new Licensing API - however Googles docs for this are excruciatingly confusing to me. See: <a href="https://developer.chrome.com/webstore/check_for_payment" rel="noreferrer">https://developer.chrome.com/webstore/check_for_payment</a> </p>
  
  <p>Furthermore, it seems that OpenID 2.0 is deprecated? <a href="https://developers.google.com/accounts/docs/OpenID2" rel="noreferrer">https://developers.google.com/accounts/docs/OpenID2</a></p>
  
  <p>Is there some sort of drop-in code to setup a Free Trial and check the user against the Licensing API? I have a lot of users and I don't want to mess up and force them to hit a payment wall- they should be grandfathered in for free. I can't find anyone else online who has done this to look at their code and understand.</p>
  
  <p>Ideally my extension should be fully functional for 7 days, and then expire the free trial and require payment from the user.</p>
  
  <p>I appreciate any help here!</p>