diff -r 000000000000 -r 6474c204b198 netwerk/system/mac/nsNetworkLinkService.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/system/mac/nsNetworkLinkService.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* 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 NSNETWORKLINKSERVICEMAC_H_
+#define NSNETWORKLINKSERVICEMAC_H_
+
+#include "nsINetworkLinkService.h"
+#include "nsIObserver.h"
+
+#include <SystemConfiguration/SCNetworkReachability.h>
+
+class nsNetworkLinkService : public nsINetworkLinkService,
+                             public nsIObserver
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSINETWORKLINKSERVICE
+    NS_DECL_NSIOBSERVER
+
+    nsNetworkLinkService();
+    virtual ~nsNetworkLinkService();
+
+    nsresult Init();
+    nsresult Shutdown();
+
+private:
+    bool mLinkUp;
+    bool mStatusKnown;
+
+    SCNetworkReachabilityRef mReachability;
+    CFRunLoopRef mCFRunLoop;
+
+    void UpdateReachability();
+    void SendEvent();
+    static void ReachabilityChanged(SCNetworkReachabilityRef target,
+                                    SCNetworkConnectionFlags flags,
+                                    void *info);
+};
+
+#endif /* NSNETWORKLINKSERVICEMAC_H_ */