Issue #2889393 by joseph.olstad, alisonjo2786: Call to undefined function...

Issue #2889393 by joseph.olstad, alisonjo2786: Call to undefined function file_entity_get_filetype_candidates()

media.module

@@ -1138,6 +1138,9 @@ function media_get_thumbnail_preview($file, $link = FALSE, $view_mode = 'preview
 function media_file_validate_types($file, $types) {
   $errors = array();
 
+  if (!function_exists('file_entity_get_filetype_candidates')) {
+    module_load_include('inc', 'file_entity', 'file_entity.pages');
+  }
   $file_candidates = array_keys(file_entity_get_filetype_candidates($file));
   if (!array_intersect($file_candidates, $types)) {
     $errors[] = t('Only the following types of files are allowed to be uploaded: %types-allowed', array('%types-allowed' => implode(', ', $types)));