diff -r 000000000000 -r 6474c204b198 embedding/components/windowwatcher/public/nsIPromptFactory.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/embedding/components/windowwatcher/public/nsIPromptFactory.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+/* 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/. */
+
+#include "nsISupports.idl"
+
+interface nsIDOMWindow;
+
+/**
+ * This interface allows creating various prompts that have a specific parent.
+ */
+[scriptable, uuid(2532b748-75db-4732-9173-78d3bf34f694)]
+interface nsIPromptFactory : nsISupports
+{
+  /**
+   * Returns an object implementing the specified interface that creates
+   * prompts parented to aParent.
+   */
+  void getPrompt(in nsIDOMWindow aParent, in nsIIDRef iid,
+                 [iid_is(iid),retval] out nsQIResult result);
+};
+