Bug 1765156 - Part 8: Use SpecialPowers.ChromeUtils.import in mobile/. r=geckoview-reviewers,agi

Differential Revision: https://phabricator.services.mozilla.com/D144089

mobile/android/components/extensions/test/mochitest/head.js

@@ -2,9 +2,8 @@
 
 /* exported AppConstants, TEST_ICON_ARRAYBUFFER */
 
-var { AppConstants } = SpecialPowers.Cu.import(
-  "resource://gre/modules/AppConstants.jsm",
-  {}
+var { AppConstants } = SpecialPowers.ChromeUtils.import(
+  "resource://gre/modules/AppConstants.jsm"
 );
 
 var TEST_ICON_DATA =