Bug 1736058 - Add ChromeUtils to httpserver/httpd sandbox for sjs files to use. r=necko-reviewers,valentin

Differential Revision: https://phabricator.services.mozilla.com/D128617

netwerk/test/httpserver/httpd.js

@@ -2842,6 +2842,7 @@ ServerHandler.prototype = {
         s.importFunction(dump, "dump");
         s.importFunction(atob, "atob");
         s.importFunction(btoa, "btoa");
+        s.importFunction(ChromeUtils, "ChromeUtils");
 
         // Define a basic key-value state-preservation API across requests, with
         // keys initially corresponding to the empty string.