diff -r 000000000000 -r 6474c204b198 xpcom/base/nsConsoleMessage.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xpcom/base/nsConsoleMessage.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+/* -*- 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 __nsconsolemessage_h__
+#define __nsconsolemessage_h__
+
+#include "mozilla/Attributes.h"
+
+#include "nsIConsoleMessage.h"
+#include "nsString.h"
+
+class nsConsoleMessage MOZ_FINAL : public nsIConsoleMessage {
+public:
+    nsConsoleMessage();
+    nsConsoleMessage(const char16_t *message);
+
+    NS_DECL_THREADSAFE_ISUPPORTS
+    NS_DECL_NSICONSOLEMESSAGE
+
+private:
+    ~nsConsoleMessage() {}
+
+    int64_t mTimeStamp;
+    nsString mMessage;
+};
+
+#endif /* __nsconsolemessage_h__ */