Skip unknown channel configurations when parsing session config.

remoting/protocol/jingle_messages.cc

 // 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.
 
 #include "remoting/protocol/jingle_messages.h"
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "remoting/base/constants.h"
 #include "remoting/protocol/content_description.h"
@@ skipping 241 matching lines @@
 
   description.reset(NULL);
   if (action == SESSION_INITIATE || action == SESSION_ACCEPT) {
     const XmlElement* description_tag = content_tag->FirstNamed(
         QName(kChromotingXmlNamespace, "description"));
     if (!description_tag) {
       *error = "Missing chromoting content description";
       return false;
     }
 
-    description.reset(ContentDescription::ParseXml(description_tag));
+    description = ContentDescription::ParseXml(description_tag);
     if (!description.get()) {
       *error = "Failed to parse content description";
       return false;
     }
   }
 
   candidates.clear();
   const XmlElement* transport_tag = content_tag->FirstNamed(
       QName(kP2PTransportNamespace, "transport"));
   if (transport_tag) {
@@ skipping 175 matching lines @@
     text_elem->SetAttr(QName(kXmlNamespace, "lang"), "en");
     text_elem->SetBodyText(error_text);
     error->AddElement(text_elem);
   }
 
   return iq.Pass();
 }
 
 }  // namespace protocol
 }  // namespace remoting