diff -r 000000000000 -r 6474c204b198 media/webrtc/signaling/src/common/NullTransport.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/webrtc/signaling/src/common/NullTransport.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+/* 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 NULL_TRANSPORT_H_
+#define NULL_TRANSPORT_H_
+
+#include "mozilla/Attributes.h"
+
+#include "webrtc/common_types.h"
+
+namespace mozilla {
+
+/**
+ * NullTransport is registered as ExternalTransport to throw away data
+ */
+class NullTransport : public webrtc::Transport
+{
+public:
+  virtual int SendPacket(int channel, const void *data, int len)
+  {
+    (void) channel; (void) data;
+    return len;
+  }
+
+  virtual int SendRTCPPacket(int channel, const void *data, int len)
+  {
+    (void) channel; (void) data;
+    return len;
+  }
+
+  NullTransport() {}
+
+  virtual ~NullTransport() {}
+
+private:
+  NullTransport(const NullTransport& other) MOZ_DELETE;
+  void operator=(const NullTransport& other) MOZ_DELETE;
+};
+
+} // end namespace
+
+#endif