MDL-42266 Lib: Allow additional max upload file sizes

lib/moodlelib.php

@@ -6589,7 +6589,9 @@ function get_max_upload_sizes($sitebytes = 0, $coursebytes = 0, $modulebytes = 0
 
     $filesize = array();
     $sizelist = array(10240, 51200, 102400, 512000, 1048576, 2097152,
-                      5242880, 10485760, 20971520, 52428800, 104857600);
+                      5242880, 10485760, 20971520, 52428800, 104857600,
+                      262144000, 524288000, 786432000, 1073741824,
+                      2147483648, 4294967296, 8589934592);
 
     // If custombytes is given and is valid then add it to the list.
     if (is_number($custombytes) and $custombytes > 0) {