User is now signed in to the app using Google+
If the user chooses to disconnect, the app must delete all stored
information retrieved from Google for the given user.
User's profile information
This data is retrieved client-side by using the Google JavaScript API
client library.
User's friends that are visible to this app
This data is retrieved from your server, where your server makes
an authorized HTTP request on the user's behalf.
If your app uses server-side rendering, this is the section you
would change using your server-side templating system.
Authentication Logs
