diff -r 000000000000 -r 6474c204b198 toolkit/components/alerts/nsAlertsService.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/alerts/nsAlertsService.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsAlertsService_h__
+#define nsAlertsService_h__
+
+#include "nsIAlertsService.h"
+#include "nsCOMPtr.h"
+#include "nsXULAlerts.h"
+
+#ifdef XP_WIN
+typedef enum tagMOZ_QUERY_USER_NOTIFICATION_STATE {
+    QUNS_NOT_PRESENT = 1,
+    QUNS_BUSY = 2,
+    QUNS_RUNNING_D3D_FULL_SCREEN = 3,
+    QUNS_PRESENTATION_MODE = 4,
+    QUNS_ACCEPTS_NOTIFICATIONS = 5,
+    QUNS_QUIET_TIME = 6,
+    QUNS_IMMERSIVE = 7
+} MOZ_QUERY_USER_NOTIFICATION_STATE;
+
+extern "C" {
+// This function is Windows Vista or later
+typedef HRESULT (__stdcall *SHQueryUserNotificationStatePtr)(MOZ_QUERY_USER_NOTIFICATION_STATE *pquns);
+}
+#endif // defined(XP_WIN)
+
+class nsAlertsService : public nsIAlertsService,
+                        public nsIAlertsProgressListener
+{
+public:
+  NS_DECL_NSIALERTSPROGRESSLISTENER
+  NS_DECL_NSIALERTSSERVICE
+  NS_DECL_ISUPPORTS
+
+  nsAlertsService();
+  virtual ~nsAlertsService();
+
+protected:
+  bool ShouldShowAlert();
+  nsXULAlerts mXULAlerts;
+};
+
+#endif /* nsAlertsService_h__ */