Reland the CL to remove candidates when doing continual gathering

webrtc/api/webrtcsession.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.
  */
 
 #ifndef WEBRTC_API_WEBRTCSESSION_H_
 #define WEBRTC_API_WEBRTCSESSION_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "webrtc/api/datachannel.h"
 #include "webrtc/api/dtmfsender.h"
 #include "webrtc/api/mediacontroller.h"
 #include "webrtc/api/mediastreamprovider.h"
 #include "webrtc/api/peerconnectioninterface.h"
 #include "webrtc/api/statstypes.h"
 #include "webrtc/base/sigslot.h"
 #include "webrtc/base/sslidentity.h"
 #include "webrtc/base/thread.h"
 #include "webrtc/media/base/mediachannel.h"
+#include "webrtc/p2p/base/candidate.h"
 #include "webrtc/p2p/base/transportcontroller.h"
 #include "webrtc/pc/mediasession.h"
 
 namespace cricket {
 
 class ChannelManager;
 class DataChannel;
 class StatsReport;
 class VideoCapturer;
 class VideoChannel;
@@ skipping 36 matching lines @@
   // TODO(honghaiz): Change the name to OnIceConnectionStateChange so as to
   // conform to the w3c standard.
   virtual void OnIceConnectionChange(
       PeerConnectionInterface::IceConnectionState new_state) {}
   // Called any time the IceGatheringState changes
   virtual void OnIceGatheringChange(
       PeerConnectionInterface::IceGatheringState new_state) {}
   // New Ice candidate have been found.
   virtual void OnIceCandidate(const IceCandidateInterface* candidate) = 0;
 
+  // Some local ICE candidates have been removed.
+  virtual void OnIceCandidatesRemoved(
+      const std::vector<cricket::Candidate>& candidates) = 0;
+
   // Called whenever the state changes between receiving and not receiving.
   virtual void OnIceConnectionReceivingChange(bool receiving) {}
 
  protected:
   ~IceObserver() {}
 
  private:
   RTC_DISALLOW_COPY_AND_ASSIGN(IceObserver);
 };
 
@@ skipping 104 matching lines @@
   void CreateAnswer(CreateSessionDescriptionObserver* observer,
                     const cricket::MediaSessionOptions& session_options);
   // The ownership of |desc| will be transferred after this call.
   bool SetLocalDescription(SessionDescriptionInterface* desc,
                            std::string* err_desc);
   // The ownership of |desc| will be transferred after this call.
   bool SetRemoteDescription(SessionDescriptionInterface* desc,
                             std::string* err_desc);
   bool ProcessIceMessage(const IceCandidateInterface* ice_candidate);
 
+  bool RemoveRemoteIceCandidates(
+      const std::vector<cricket::Candidate>& candidates);
+
   bool SetIceTransports(PeerConnectionInterface::IceTransportsType type);
 
   cricket::IceConfig ParseIceConfig(
       const PeerConnectionInterface::RTCConfiguration& config) const;
 
   void SetIceConfig(const cricket::IceConfig& ice_config);
 
   // Start gathering candidates for any new transports, or transports doing an
   // ICE restart.
   void MaybeStartGathering();
@@ skipping 206 matching lines @@
   // index is valid.
   bool ReadyToUseRemoteCandidate(const IceCandidateInterface* candidate,
                                  const SessionDescriptionInterface* remote_desc,
                                  bool* valid);
 
   void OnTransportControllerConnectionState(cricket::IceConnectionState state);
   void OnTransportControllerReceiving(bool receiving);
   void OnTransportControllerGatheringState(cricket::IceGatheringState state);
   void OnTransportControllerCandidatesGathered(
       const std::string& transport_name,
-      const cricket::Candidates& candidates);
+      const std::vector<cricket::Candidate>& candidates);
+  void OnTransportControllerCandidatesRemoved(
+      const std::vector<cricket::Candidate>& candidates);
 
   std::string GetSessionErrorMsg();
 
   // Invoked when TransportController connection completion is signaled.
   // Reports stats for all transports in use.
   void ReportTransportStats();
 
   // Gather the usage of IPv4/IPv6 as best connection.
   void ReportBestConnectionState(const cricket::TransportStats& stats);
 
@@ skipping 50 matching lines @@
   PeerConnectionInterface::BundlePolicy bundle_policy_;
 
   // Declares the RTCP mux policy for the WebRTCSession.
   PeerConnectionInterface::RtcpMuxPolicy rtcp_mux_policy_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(WebRtcSession);
 };
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_WEBRTCSESSION_H_