diff -r 000000000000 -r 6474c204b198 intl/uconv/src/nsConverterOutputStream.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/intl/uconv/src/nsConverterOutputStream.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,36 @@
+/* vim:set expandtab ts=4 sw=4 sts=4 cin: */
+/* 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 NSCONVERTEROUTPUTSTREAM_H_
+#define NSCONVERTEROUTPUTSTREAM_H_
+
+#include "nsIConverterOutputStream.h"
+#include "nsCOMPtr.h"
+#include "mozilla/Attributes.h"
+
+class nsIUnicodeEncoder;
+class nsIOutputStream;
+
+/* ff8780a5-bbb1-4bc5-8ee7-057e7bc5c925 */
+#define NS_CONVERTEROUTPUTSTREAM_CID \
+{ 0xff8780a5, 0xbbb1, 0x4bc5, \
+  { 0x8e, 0xe7, 0x05, 0x7e, 0x7b, 0xc5, 0xc9, 0x25 } }
+
+class nsConverterOutputStream MOZ_FINAL : public nsIConverterOutputStream {
+    public:
+        nsConverterOutputStream() {}
+
+        NS_DECL_ISUPPORTS
+        NS_DECL_NSIUNICHAROUTPUTSTREAM
+        NS_DECL_NSICONVERTEROUTPUTSTREAM
+
+    private:
+        ~nsConverterOutputStream();
+
+        nsCOMPtr<nsIUnicodeEncoder> mConverter;
+        nsCOMPtr<nsIOutputStream>   mOutStream;
+};
+
+#endif