1 files changed, 10 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/setup-in-parent.js b/devtools/server/tests/browser/setup-in-parent.js
new file mode 100644
index 0000000000..f715a20861
--- /dev/null
+++ b/devtools/server/tests/browser/setup-in-parent.js
@@ -0,0 +1,10 @@
+"use strict";
+
+var Services = require("Services");
+var ChromeUtils = require("ChromeUtils");
+
+exports.setupParent = function({ mm, prefix }) {
+  const args = [ChromeUtils.getClassName(mm) == "ChromeMessageSender", prefix];
+  Services.obs.notifyObservers(null, "test:setupParent", JSON.stringify(args));
+  return {};
+};