src/googledrive.js
function () {
    this.rs.setBackend('googledrive');
    this.rs.authorize({ authURL: AUTH_URL, scope: AUTH_SCOPE, clientId: this.clientId });
  }
function () {
    this.rs.setBackend('googledrive');
    this.rs.authorize({ authURL: AUTH_URL, scope: AUTH_SCOPE, clientId: this.clientId });
  }
Initiate the authorization flow's OAuth dance.