Pass around the candidate removals events in IOS clients

webrtc/sdk/objc/Framework/Headers/WebRTC/RTCPeerConnection.h

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 80 matching lines @@
     didChangeIceConnectionState:(RTCIceConnectionState)newState;
 
 /** Called any time the IceGatheringState changes. */
 - (void)peerConnection:(RTCPeerConnection *)peerConnection
     didChangeIceGatheringState:(RTCIceGatheringState)newState;
 
 /** New ice candidate has been found. */
 - (void)peerConnection:(RTCPeerConnection *)peerConnection
     didGenerateIceCandidate:(RTCIceCandidate *)candidate;
 
+/** Called when a group of local Ice candidates have been removed. */
+- (void)peerConnection:(RTCPeerConnection *)peerConnection
+    didRemoveIceCandidates:(NSArray<RTCIceCandidate *> *)candidates;
+
 /** New data channel has been opened. */
 - (void)peerConnection:(RTCPeerConnection *)peerConnection
     didOpenDataChannel:(RTCDataChannel *)dataChannel;
 
 @end
 
 RTC_EXPORT
 @interface RTCPeerConnection : NSObject
 
 /** The object that will be notifed about events such as state changes and
@@ skipping 30 matching lines @@
  *  cannot be changed with this method.
  */
 - (BOOL)setConfiguration:(RTCConfiguration *)configuration;
 
 /** Terminate all media and close the transport. */
 - (void)close;
 
 /** Provide a remote candidate to the ICE Agent. */
 - (void)addIceCandidate:(RTCIceCandidate *)candidate;
 
+/** Remove a group of remote candidates from the ICE Agent. */
+- (void)removeIceCandidates:(NSArray<RTCIceCandidate *> *)candidates;
+
 /** Add a new media stream to be sent on this peer connection. */
 - (void)addStream:(RTCMediaStream *)stream;
 
 /** Remove the given media stream from this peer connection. */
 - (void)removeStream:(RTCMediaStream *)stream;
 
 /** Generate an SDP offer. */
 - (void)offerForConstraints:(RTCMediaConstraints *)constraints
           completionHandler:(nullable void (^)
     (RTCSessionDescription * _Nullable sdp,
@@ skipping 42 matching lines @@
  */
 - (void)statsForTrack:
     (nullable RTCMediaStreamTrack *)mediaStreamTrack
      statsOutputLevel:(RTCStatsOutputLevel)statsOutputLevel
     completionHandler:
     (nullable void (^)(NSArray<RTCStatsReport *> *stats))completionHandler;
 
 @end
 
 NS_ASSUME_NONNULL_END