Implements callback_batch_operation().
Performs batch installation of modules.
function _install_module_batch($module, $module_name, &$context) {
// Install and enable the module right away, so that the module will be
// loaded by drupal_bootstrap in subsequent batch requests, and other
// modules possibly depending on it can safely perform their installation
// steps.
module_enable(array(
$module,
), FALSE);
$context['results'][] = $module;
$context['message'] = st('Installed %module module.', array(
'%module' => $module_name,
));
}