Remove candidates when doing continual gathering

webrtc/api/peerconnection.cc

Index: webrtc/api/peerconnection.cc
diff --git a/webrtc/api/peerconnection.cc b/webrtc/api/peerconnection.cc
index c2039aeea414321e612e461d635df72e486904a3..9cd5cee04d512886cac2278e36886e848efacfbd 100644
--- a/webrtc/api/peerconnection.cc
+++ b/webrtc/api/peerconnection.cc
@@ -1207,6 +1207,12 @@ bool PeerConnection::AddIceCandidate(
   return session_->ProcessIceMessage(ice_candidate);
 }
 
+bool PeerConnection::RemoveIceCandidates(
+    const std::vector<cricket::Candidate>& candidates) {
+  TRACE_EVENT0("webrtc", "PeerConnection::RemoveIceCandidates");
+  return session_->RemoveRemoteIceCandidates(candidates);
+}
+
 void PeerConnection::RegisterUMAObserver(UMAObserver* observer) {
   TRACE_EVENT0("webrtc", "PeerConnection::RegisterUmaObserver");
   uma_observer_ = observer;
@@ -1385,6 +1391,12 @@ void PeerConnection::OnIceCandidate(const IceCandidateInterface* candidate) {
   observer_->OnIceCandidate(candidate);
 }
 
+void PeerConnection::OnIceCandidatesRemoved(
+    const std::vector<cricket::Candidate>& candidates) {
+  RTC_DCHECK(signaling_thread()->IsCurrent());
+  observer_->OnIceCandidatesRemoved(candidates);
+}
+
 void PeerConnection::OnIceConnectionReceivingChange(bool receiving) {
   RTC_DCHECK(signaling_thread()->IsCurrent());
   observer_->OnIceConnectionReceivingChange(receiving);