diff --git a/webrtc/call/video_receive_stream.h b/webrtc/call/video_receive_stream.h
index 6e943827e8..bd4b9976f6 100644
--- a/webrtc/call/video_receive_stream.h
+++ b/webrtc/call/video_receive_stream.h
@@ -171,7 +171,11 @@ class VideoReceiveStream {
       // Map from video payload type (apt) -> RTX payload type (pt).
       // For RTX to be enabled, both an SSRC and this mapping are needed.
       std::map<int, int> rtx_payload_types;
-
+      // TODO(nisse): This is a temporary accessor function to enable
+      // reversing and renaming of the rtx_payload_types mapping.
+      void AddRtxBinding(int rtx_payload_type, int media_payload_type) {
+        rtx_payload_types[media_payload_type] = rtx_payload_type;
+      }
       // RTP header extensions used for the received stream.
       std::vector<RtpExtension> extensions;
     } rtp;