Bug 1834176 - Convert NetUtil.jsm to be an ES system module. r=arai,webdriver-reviewers,perftest-reviewers,valentin,extension-reviewers,devtools-reviewers,sync-reviewers,cookie-reviewers,robwu,afinder,whimboo

Differential Revision: https://phabricator.services.mozilla.com/D178589

Author: Standard8

browser/base/content/browser.js

@@ -34,6 +34,7 @@ ChromeUtils.defineESModuleGetters(this, {
   LoginHelper: "resource://gre/modules/LoginHelper.sys.mjs",
   LoginManagerParent: "resource://gre/modules/LoginManagerParent.sys.mjs",
   MigrationUtils: "resource:///modules/MigrationUtils.sys.mjs",
+  NetUtil: "resource://gre/modules/NetUtil.sys.mjs",
   NewTabUtils: "resource://gre/modules/NewTabUtils.sys.mjs",
   NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs",
   PageThumbs: "resource://gre/modules/PageThumbs.sys.mjs",
@@ -90,7 +91,6 @@ XPCOMUtils.defineLazyModuleGetters(this, {
   CustomizableUI: "resource:///modules/CustomizableUI.jsm",
   ExtensionsUI: "resource:///modules/ExtensionsUI.jsm",
   HomePage: "resource:///modules/HomePage.jsm",
-  NetUtil: "resource://gre/modules/NetUtil.jsm",
   OpenInTabsUtils: "resource:///modules/OpenInTabsUtils.jsm",
   PageActions: "resource:///modules/PageActions.jsm",
   ProcessHangMonitor: "resource:///modules/ProcessHangMonitor.jsm",

browser/base/content/test/performance/PerfTestHelpers.sys.mjs

@@ -3,11 +3,9 @@
 
 const lazy = {};
 
-ChromeUtils.defineModuleGetter(
-  lazy,
-  "NetUtil",
-  "resource://gre/modules/NetUtil.jsm"
-);
+ChromeUtils.defineESModuleGetters(lazy, {
+  NetUtil: "resource://gre/modules/NetUtil.sys.mjs",
+});
 
 export var PerfTestHelpers = {
   /**