1 files changed, 9 insertions, 0 deletions
diff --git a/chrome/test/unit/head_crtestutils.js b/chrome/test/unit/head_crtestutils.js
new file mode 100644
index 0000000000..d20486c385
--- /dev/null
+++ b/chrome/test/unit/head_crtestutils.js
@@ -0,0 +1,9 @@
+const XULAPPINFO_CONTRACTID = "@mozilla.org/xre/app-info;1";
+const XULAPPINFO_CID = Components.ID("{4ba645d3-be6f-40d6-a42a-01b2f40091b8}");
+
+function registerManifests(manifests) {
+  var reg = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+  for (var manifest of manifests) {
+    reg.autoRegister(manifest);
+  }
+}