anchor.diff:                                )
                               : new ListTile(
                                   leading: const Icon(Icons.exit_to_app),
  -                                title: new Text('Log out'),
  +                                title: new Text('Se déconnecter'),
                                   onTap: () {
                                     authHelper.signOut().then((account) {
                                       _rebuild();
  
positive.code:                         authHelper.currentUser == null
                              ? new ListTile(
                                  leading: const Icon(Icons.account_box),
                                  title: new Text('Sign in with google'),
                                  onTap: () {
                                    authHelper.signIn().then((success) {
                                      if (success) {
  
negative.code:           new UserAccountsDrawerHeader(
              accountName: new Text(authHelper.currentUser != null
                  ? authHelper.currentUser.displayName
                  : "Pas connecté"),
              accountEmail: new Text(authHelper.currentUser != null
                  ? authHelper.currentUser.email
                  : ""),
  