diff -r 000000000000 -r 6474c204b198 toolkit/components/downloads/test/schema_migration/head_migration.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/downloads/test/schema_migration/head_migration.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+Components.utils.import("resource://gre/modules/Services.jsm");
+
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cr = Components.results;
+
+do_get_profile();
+
+do_register_cleanup(function() {
+  Services.obs.notifyObservers(null, "quit-application", null);
+});
+
+var dirSvc = Cc["@mozilla.org/file/directory_service;1"].
+             getService(Ci.nsIProperties);
+
+function importDatabaseFile(aFName)
+{
+  var file = do_get_file(aFName);
+  var newFile = dirSvc.get("ProfD", Ci.nsIFile);
+  file.copyTo(newFile, "downloads.sqlite");
+}
+
+function cleanup()
+{
+  // removing database
+  var dbFile = dirSvc.get("ProfD", Ci.nsIFile);
+  dbFile.append("downloads.sqlite");
+  if (dbFile.exists())
+    try { dbFile.remove(true); } catch(e) { /* stupid windows box */ }
+}
+
+cleanup();
+