diff -r 000000000000 -r 6474c204b198 dom/system/mac/CoreLocationLocationProvider.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/system/mac/CoreLocationLocationProvider.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,40 @@
+/* -*- 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/. */
+
+#include "nsCOMPtr.h"
+#include "nsIGeolocationProvider.h"
+
+/*
+ * The CoreLocationObjects class contains the CoreLocation objects
+ * we'll need.
+ *
+ * Declaring them directly in CoreLocationLocationProvider
+ * would require Objective-C++ syntax, which would contaminate all
+ * files that include this header and require them to be Objective-C++
+ * as well.
+ *
+ * The solution then is to forward-declare CoreLocationObjects here and
+ * hold a pointer to it in CoreLocationLocationProvider, and only actually
+ * define it in CoreLocationLocationProvider.mm, thus making it safe
+ * for nsGeolocation.cpp, which is C++-only, to include this header.
+ */
+class CoreLocationObjects;
+
+class CoreLocationLocationProvider
+  : public nsIGeolocationProvider
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIGEOLOCATIONPROVIDER
+
+  CoreLocationLocationProvider();
+  void NotifyError(uint16_t aErrorCode);
+  void Update(nsIDOMGeoPosition* aSomewhere);
+private:
+  virtual ~CoreLocationLocationProvider() {};
+
+  CoreLocationObjects* mCLObjects;
+  nsCOMPtr<nsIGeolocationUpdate> mCallback;
+};