diff -r 000000000000 -r 6474c204b198 browser/components/feeds/src/nsFeedSniffer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/feeds/src/nsFeedSniffer.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,35 @@
+/* -*- Mode: C++; tab-width: 8; 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/. */
+
+
+#include "nsIContentSniffer.h"
+#include "nsIStreamListener.h"
+#include "nsStringAPI.h"
+#include "mozilla/Attributes.h"
+
+class nsFeedSniffer MOZ_FINAL : public nsIContentSniffer,
+                                       nsIStreamListener
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICONTENTSNIFFER
+  NS_DECL_NSIREQUESTOBSERVER
+  NS_DECL_NSISTREAMLISTENER
+
+  static NS_METHOD AppendSegmentToString(nsIInputStream* inputStream,
+                                         void* closure,
+                                         const char* rawSegment,
+                                         uint32_t toOffset,
+                                         uint32_t count,
+                                         uint32_t* writeCount);
+
+protected:
+  nsresult ConvertEncodedData(nsIRequest* request, const uint8_t* data,
+                              uint32_t length);
+
+private:
+  nsCString mDecodedData;
+};
+