diff -r 000000000000 -r 6474c204b198 widget/cocoa/nsScreenManagerCocoa.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/cocoa/nsScreenManagerCocoa.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 nsScreenManagerCocoa_h_
+#define nsScreenManagerCocoa_h_
+
+#import <Cocoa/Cocoa.h>
+
+#include "nsTArray.h"
+#include "nsAutoPtr.h"
+#include "nsIScreenManager.h"
+#include "nsScreenCocoa.h"
+
+class nsScreenManagerCocoa : public nsIScreenManager
+{
+public:
+    nsScreenManagerCocoa();
+    virtual ~nsScreenManagerCocoa();
+
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSISCREENMANAGER
+
+private:
+
+    nsScreenCocoa *ScreenForCocoaScreen(NSScreen *screen);
+    nsTArray< nsRefPtr<nsScreenCocoa> > mScreenList;
+};
+
+#endif // nsScreenManagerCocoa_h_