[Chromoting] Plugin message in JingleMessage

remoting/protocol/jingle_messages.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_PROTOCOL_JINGLE_MESSAGES_H_
 #define REMOTING_PROTOCOL_JINGLE_MESSAGES_H_
 
 #include <list>
 #include <memory>
 #include <string>
@@ skipping 83 matching lines @@
 
   std::string initiator;
 
   std::unique_ptr<ContentDescription> description;
 
   std::unique_ptr<buzz::XmlElement> transport_info;
 
   // Content of session-info messages.
   std::unique_ptr<buzz::XmlElement> info;
 
+  // Content of plugin message. The node is read or written by all plugins, and
+  // ActionType independent.
+  std::unique_ptr<buzz::XmlElement> attachments;
+
   // Value from the <reason> tag if it is present in the
   // message. Useful mainly for session-terminate messages, but Jingle
   // spec allows it in any message.
   Reason reason = UNKNOWN_REASON;
 
   // Value from the <google:remoting:error-code> tag if it is present in the
   // message. Useful mainly for session-terminate messages. If it's UNKNOWN,
   // or reason is UNKNOWN_REASON, this field will be ignored in the xml output.
   ErrorCode error_code = UNKNOWN_ERROR;
 };
@@ skipping 57 matching lines @@
   std::unique_ptr<buzz::XmlElement> ToXml() const;
 
   std::list<IceCredentials> ice_credentials;
   std::list<NamedCandidate> candidates;
 };
 
 }  // protocol
 }  // remoting
 
 #endif  // REMOTING_PROTOCOL_JINGLE_MESSAGES_H_