diff -r 000000000000 -r 6474c204b198 widget/cocoa/nsClipboard.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/cocoa/nsClipboard.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+/* -*- 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 nsClipboard_h_
+#define nsClipboard_h_
+
+#include "nsBaseClipboard.h"
+#include "nsXPIDLString.h"
+
+#import <Cocoa/Cocoa.h>
+
+class nsITransferable;
+
+class nsClipboard : public nsBaseClipboard
+{
+
+public:
+  nsClipboard();
+  virtual ~nsClipboard();
+
+  // nsIClipboard  
+  NS_IMETHOD HasDataMatchingFlavors(const char** aFlavorList, uint32_t aLength,
+                                    int32_t aWhichClipboard, bool *_retval);
+  NS_IMETHOD SupportsFindClipboard(bool *_retval);
+
+  // Helper methods, used also by nsDragService
+  static NSDictionary* PasteboardDictFromTransferable(nsITransferable *aTransferable);
+  static bool IsStringType(const nsCString& aMIMEType, NSString** aPasteboardType);
+  static NSString* WrapHtmlForSystemPasteboard(NSString* aString);
+  static nsresult TransferableFromPasteboard(nsITransferable *aTransferable, NSPasteboard *pboard);
+
+protected:
+
+  // impelement the native clipboard behavior
+  NS_IMETHOD SetNativeClipboardData(int32_t aWhichClipboard);
+  NS_IMETHOD GetNativeClipboardData(nsITransferable * aTransferable, int32_t aWhichClipboard);
+  
+private:
+  int32_t mCachedClipboard;
+  int32_t mChangeCount; // Set to the native change count after any modification of the clipboard.
+};
+
+#endif // nsClipboard_h_