Bug 1834176 - Convert NetUtil.jsm to an ES module. r=necko-reviewers,valentin

Depends on D178588

Differential Revision: https://phabricator.services.mozilla.com/D178954

netwerk/base/NetUtil.sys.mjs

@@ -4,8 +4,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-var EXPORTED_SYMBOLS = ["NetUtil"];
-
 /**
  * Necko utilities
  */
@@ -24,7 +22,7 @@ const BinaryInputStream = Components.Constructor(
 // //////////////////////////////////////////////////////////////////////////////
 // // NetUtil Object
 
-var NetUtil = {
+export var NetUtil = {
   /**
    * Function to perform simple async copying from aSource (an input stream)
    * to aSink (an output stream).  The copy will happen on some background

netwerk/base/moz.build

@@ -303,7 +303,7 @@ elif CONFIG["OS_ARCH"] == "Linux":
     ]
 
 EXTRA_JS_MODULES += [
-    "NetUtil.jsm",
+    "NetUtil.sys.mjs",
 ]
 
 DIRS += ["mozurl", "rust-helper", "http-sfv"]