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 6ea852d37e5c212a48698fc9e7c1ed04d5d156d4..d436d7de09bf1e159efb3a0d9d4661fa34282cfe 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 cricket::Candidates& 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 cricket::Candidates& candidates) {
+  RTC_DCHECK(signaling_thread()->IsCurrent());
+  observer_->OnIceCandidatesRemoved(candidates);
+}
+
 void PeerConnection::OnIceConnectionReceivingChange(bool receiving) {
   RTC_DCHECK(signaling_thread()->IsCurrent());
   observer_->OnIceConnectionReceivingChange(receiving);