WP_MS_Users_List_Table::handle_row_actions

	 * @param string $column_name Current column name.
	 * @param string $primary     Primary column name.
	 * @return string Row actions output for users in Multisite, or an empty string
	 *                if the current column is not the primary column.
	 */
	protected function handle_row_actions( $user, $column_name, $primary ) {
		if ( $primary !== $column_name ) {
			return '';
		}

		$super_admins = get_super_admins();

		$actions = array();

		if ( current_user_can( 'edit_user', $user->ID ) ) {
			$edit_link       = esc_url( add_query_arg( 'wp_http_referer', urlencode( wp_unslash( $_SERVER['REQUEST_URI'] ) ), get_edit_user_link( $user->ID ) ) );
			$actions['edit'] = '<a href="' . $edit_link . '">' . __( 'Edit' ) . '</a>';
		}

		if ( current_user_can( 'delete_user', $user->ID ) && ! in_array( $user->user_login, $super_admins, true ) ) {
			$actions['delete'] = '<a href="' . esc_url( network_admin_url( add_query_arg( '_wp_http_referer', urlencode( wp_unslash( $_SERVER['REQUEST_URI'] ) ), wp_nonce_url( 'users.php', 'deleteuser' ) . '&amp;action=deleteuser&amp;id=' . $user->ID ) ) ) . '" class="delete">' . __( 'Delete' ) . '</a>';
		}

		/**
		 * Filters the action links displayed under each user in the Network Admin Users list table.
		 *
		 * @since 3.2.0
		 *
		 * @param string[] $actions An array of action links to be displayed. Default 'Edit', 'Delete'.
		 * @param WP_User  $user    WP_User object.