Switch to using AddTrack with stream labels

Bug: webrtc:8587
Change-Id: I8d4a3a225e6f6a6ae59def972ecae3255c0f2bda
Reviewed-on: https://webrtc-review.googlesource.com/37547
Commit-Queue: Steve Anton <steveanton@webrtc.org>
Reviewed-by: Peter Thatcher <pthatcher@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21509}
diff --git a/api/peerconnectioninterface.h b/api/peerconnectioninterface.h
index d3209f4..6ea0cb0 100644
--- a/api/peerconnectioninterface.h
+++ b/api/peerconnectioninterface.h
@@ -599,9 +599,9 @@
   // - INVALID_STATE: The PeerConnection is closed.
   // TODO(steveanton): Remove default implementation once downstream
   // implementations have been updated.
-  virtual RTCErrorOr<rtc::scoped_refptr<RtpSenderInterface>>
-  AddTrackWithStreamLabels(rtc::scoped_refptr<MediaStreamTrackInterface> track,
-                           const std::vector<std::string>& stream_labels) {
+  virtual RTCErrorOr<rtc::scoped_refptr<RtpSenderInterface>> AddTrack(
+      rtc::scoped_refptr<MediaStreamTrackInterface> track,
+      const std::vector<std::string>& stream_labels) {
     return RTCError(RTCErrorType::UNSUPPORTED_OPERATION, "Not implemented");
   }
   // |streams| indicates which stream labels the track should be associated