Bug 1642295 - Add missing Cu import in devtools/server/actors/object/utils.js r=nchevobbe

Differential Revision: https://phabricator.services.mozilla.com/D86960

devtools/server/actors/object/utils.js

@@ -4,6 +4,7 @@
 
 "use strict";
 
+const { Cu } = require("chrome");
 const { DevToolsServer } = require("devtools/server/devtools-server");
 const DevToolsUtils = require("devtools/shared/DevToolsUtils");
 const { assert } = DevToolsUtils;