diff -r 000000000000 -r 6474c204b198 toolkit/devtools/server/tests/unit/pre_init_global_actors.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/devtools/server/tests/unit/pre_init_global_actors.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function PreInitGlobalActor(aConnection) {}
+
+PreInitGlobalActor.prototype = {
+  actorPrefix: "preInitGlobal",
+  onPing: function onPing(aRequest) {
+    return { message: "pong" };
+  },
+};
+
+PreInitGlobalActor.prototype.requestTypes = {
+  "ping": PreInitGlobalActor.prototype.onPing,
+};
+
+DebuggerServer.addGlobalActor(PreInitGlobalActor, "preInitGlobalActor");