Fixing some issues with the direction attribute of m-lines in offers.

webrtc/p2p/base/sessiondescription.h

 /*
  *  Copyright 2004 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 142 matching lines @@
   // Group accessors.
   const ContentGroups& groups() const { return content_groups_; }
   const ContentGroup* GetGroupByName(const std::string& name) const;
   bool HasGroup(const std::string& name) const;
 
   // Group mutators.
   void AddGroup(const ContentGroup& group) { content_groups_.push_back(group); }
   // Remove the first group with the same semantics specified by |name|.
   void RemoveGroupByName(const std::string& name);
 
+  // Global attributes.
+  void set_msid_supported(bool supported) { msid_supported_ = supported; }
+  bool msid_supported() const { return msid_supported_; }
+
  private:
   ContentInfos contents_;
   TransportInfos transport_infos_;
   ContentGroups content_groups_;
+  bool msid_supported_ = true;
 };
 
 // Indicates whether a ContentDescription was an offer or an answer, as
 // described in http://www.ietf.org/rfc/rfc3264.txt. CA_UPDATE
 // indicates a jingle update message which contains a subset of a full
 // session description
 enum ContentAction {
   CA_OFFER, CA_PRANSWER, CA_ANSWER, CA_UPDATE
 };
 
 // Indicates whether a ContentDescription was sent by the local client
 // or received from the remote client.
 enum ContentSource {
   CS_LOCAL, CS_REMOTE
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_SESSIONDESCRIPTION_H_