Not sure I'm getting this: in the updated Javadoc, we explicitly state that the time configured _here_ is **not** related to the `expires_in` parameter (which, as per documentation, is in seconds).

Is the change to seconds here motivated by that piece of Google documentation? Or do we think `sessionIntervalInSeconds, TimeUnit.MINUTES` is simply a bug, which is indeed what it looks like, from the variable names, at least?