Do not create a temporary transport channel when using max-bundle

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.
  */
 
@@ skipping 364 matching lines @@
       cricket::ContentAction action,
       std::string* error_desc);
 
   // Returns true and the TransportInfo of the given |content_name|
   // from |description|. Returns false if it's not available.
   static bool GetTransportDescription(
       const cricket::SessionDescription* description,
       const std::string& content_name,
       cricket::TransportDescription* info);
 
+  // Returns the name of the transport channel when BUNDLE is enabled, or
+  // nullptr if the channel is not part of any bundle.
+  const std::string* GetBundleTransportName(
+      const cricket::ContentInfo* content,
+      const cricket::ContentGroup* bundle);
+
   // Cause all the BaseChannels in the bundle group to have the same
   // transport channel.
   bool EnableBundle(const cricket::ContentGroup& bundle);
 
   // Enables media channels to allow sending of media.
   void EnableChannels();
   // Returns the media index for a local ice candidate given the content name.
   // Returns false if the local session description does not have a media
   // content called  |content_name|.
   bool GetLocalCandidateMediaIndex(const std::string& content_name,
                                    int* sdp_mline_index);
   // Uses all remote candidates in |remote_desc| in this session.
   bool UseCandidatesInSessionDescription(
       const SessionDescriptionInterface* remote_desc);
   // Uses |candidate| in this session.
   bool UseCandidate(const IceCandidateInterface* candidate);
   // Deletes the corresponding channel of contents that don't exist in |desc|.
   // |desc| can be null. This means that all channels are deleted.
   void RemoveUnusedChannels(const cricket::SessionDescription* desc);
 
   // Allocates media channels based on the |desc|. If |desc| doesn't have
   // the BUNDLE option, this method will disable BUNDLE in PortAllocator.
   // This method will also delete any existing media channels before creating.
   bool CreateChannels(const cricket::SessionDescription* desc);
 
   // Helper methods to create media channels.
-  bool CreateVoiceChannel(const cricket::ContentInfo* content);
-  bool CreateVideoChannel(const cricket::ContentInfo* content);
-  bool CreateDataChannel(const cricket::ContentInfo* content);
+  bool CreateVoiceChannel(const cricket::ContentInfo* content,
+                          const std::string* bundle_transport);
+  bool CreateVideoChannel(const cricket::ContentInfo* content,
+                          const std::string* bundle_transport);
+  bool CreateDataChannel(const cricket::ContentInfo* content,
+                         const std::string* bundle_transport);
 
   // Listens to SCTP CONTROL messages on unused SIDs and process them as OPEN
   // messages.
   void OnDataChannelMessageReceived(cricket::DataChannel* channel,
                                     const cricket::ReceiveDataParams& params,
                                     const rtc::CopyOnWriteBuffer& payload);
 
   std::string BadStateErrMsg(State state);
   void SetIceConnectionState(PeerConnectionInterface::IceConnectionState state);
   void SetIceConnectionReceiving(bool receiving);
@@ skipping 90 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_