diff -r 000000000000 -r 6474c204b198 netwerk/base/src/nsSerializationHelper.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/base/src/nsSerializationHelper.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,36 @@
+/* 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/. */
+
+/** @file
+ * Helper functions for (de)serializing objects to/from ASCII strings.
+ */
+
+#ifndef NSSERIALIZATIONHELPER_H_
+#define NSSERIALIZATIONHELPER_H_
+
+#include "nsStringFwd.h"
+#include "nsISerializationHelper.h"
+#include "mozilla/Attributes.h"
+
+class nsISerializable;
+
+/**
+ * Serialize an object to an ASCII string.
+ */
+nsresult NS_SerializeToString(nsISerializable* obj,
+                              nsCSubstring& str);
+
+/**
+ * Deserialize an object.
+ */
+nsresult NS_DeserializeObject(const nsCSubstring& str,
+                              nsISupports** obj);
+
+class nsSerializationHelper MOZ_FINAL : public nsISerializationHelper
+{
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISERIALIZATIONHELPER
+};
+
+#endif