public TabBarViewGwtImpl() {
TabPanel tabPanel = new TabPanel();
tabPanel.add(new BookmarkTabBarButton(), new Label("Bookmark"));
// tabPanel.add(new ContactsTabBarButton(), new Label("Contacts"));
// tabPanel.add(new DownloadsTabBarButton(), new Label("Downloads"));
// tabPanel.add(new FavoritesTabBarButton(), new Label("Favorites"));
// tabPanel.add(new FeaturedTabBarButton(), new Label("Featured"));
tabPanel.add(new HistoryTabBarButton(), new Label("History"));