Bug 1217981 - Part 1: Remove for-each from chrome/. r=bsmedberg

--HG--
extra : commitid : 6kzkmfyTvnE
extra : rebase_source : a482097f822f1045ffd65c4448fd4229797632e6

chrome/test/unit/head_crtestutils.js

@@ -9,6 +9,6 @@ var Cr = Components.results;
 function registerManifests(manifests)
 {
   var reg = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
-  for each (var manifest in manifests)
+  for (var manifest of manifests)
     reg.autoRegister(manifest);
 }