diff -r 000000000000 -r 6474c204b198 toolkit/mozapps/update/updater/progressui.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/mozapps/update/updater/progressui.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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/. */
+
+#ifndef PROGRESSUI_H__
+#define PROGRESSUI_H__
+
+#include "updatedefines.h"
+
+#if defined(XP_WIN)
+  typedef WCHAR NS_tchar;
+  #define NS_main wmain
+#else
+  typedef char NS_tchar;
+  #define NS_main main
+#endif
+
+// Called to perform any initialization of the widget toolkit
+int InitProgressUI(int *argc, NS_tchar ***argv);
+
+#if defined(XP_WIN)
+  // Called on the main thread at startup
+  int ShowProgressUI(bool indeterminate = false, bool initUIStrings = true);
+  int InitProgressUIStrings();
+#else
+  // Called on the main thread at startup
+  int ShowProgressUI();
+#endif
+// May be called from any thread
+void QuitProgressUI();
+
+// May be called from any thread: progress is a number between 0 and 100
+void UpdateProgressUI(float progress);
+
+#endif  // PROGRESSUI_H__