Add signaling to support ICE renomination.

webrtc/api/peerconnection.h

 /*
  *  Copyright 2012 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 18 matching lines @@
 class MediaStreamObserver;
 class VideoRtpReceiver;
 
 // Populates |session_options| from |rtc_options|, and returns true if options
 // are valid.
 // |session_options|->transport_options map entries must exist in order for
 // them to be populated from |rtc_options|.
 bool ExtractMediaSessionOptions(
     const PeerConnectionInterface::RTCOfferAnswerOptions& rtc_options,
     bool is_offer,
+    bool ice_renomination,
     cricket::MediaSessionOptions* session_options);
 
 // Populates |session_options| from |constraints|, and returns true if all
 // mandatory constraints are satisfied.
 // Assumes that |session_options|->transport_options map entries exist.
 // Will also set defaults if corresponding constraints are not present:
 // recv_audio=true, recv_video=true, bundle_enabled=true.
 // Other fields will be left with existing values.
 //
 // Deprecated. Will be removed once callers that use constraints are gone.
@@ skipping 183 matching lines @@
   // Returns a MediaSessionOptions struct with options decided by
   // |constraints|, the local MediaStreams and DataChannels.
   // Deprecated, use version without constraints.
   virtual bool GetOptionsForAnswer(
       const MediaConstraintsInterface* constraints,
       cricket::MediaSessionOptions* session_options);
   virtual bool GetOptionsForAnswer(
       const RTCOfferAnswerOptions& options,
       cricket::MediaSessionOptions* session_options);
 
+  void InitializeOptionsForAnswer(
+      cricket::MediaSessionOptions* session_options);
+
   // Helper function for options processing.
   // Deprecated.
   virtual void FinishOptionsForAnswer(
       cricket::MediaSessionOptions* session_options);
 
   // Remove all local and remote tracks of type |media_type|.
   // Called when a media type is rejected (m-line set to port 0).
   void RemoveTracks(cricket::MediaType media_type);
 
   // Makes sure a MediaStreamTrack is created for each StreamParam in |streams|,
@@ skipping 155 matching lines @@
   TrackInfos local_video_tracks_;
 
   SctpSidAllocator sid_allocator_;
   // label -> DataChannel
   std::map<std::string, rtc::scoped_refptr<DataChannel>> rtp_data_channels_;
   std::vector<rtc::scoped_refptr<DataChannel>> sctp_data_channels_;
   std::vector<rtc::scoped_refptr<DataChannel>> sctp_data_channels_to_free_;
 
   bool remote_peer_supports_msid_ = false;
 
+  bool ice_renomination_ = false;
+
   std::vector<rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>>>
       senders_;
   std::vector<
       rtc::scoped_refptr<RtpReceiverProxyWithInternal<RtpReceiverInternal>>>
       receivers_;
 
   std::unique_ptr<WebRtcSession> session_;
   std::unique_ptr<StatsCollector> stats_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_PEERCONNECTION_H_