Add WebRTC support in ChromotingClient

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/strings/string_number_conversions.h"
 #include "remoting/base/constants.h"
 #include "remoting/protocol/content_description.h"
 #include "remoting/protocol/name_value_map.h"
 #include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
 
 using buzz::QName;
 using buzz::XmlElement;
 
 namespace remoting {
 namespace protocol {
 
 namespace {
 
 const char kJabberNamespace[] = "jabber:client";
 const char kJingleNamespace[] = "urn:xmpp:jingle:1";
 
 // Namespace for transport messages when using standard ICE.
 const char kIceTransportNamespace[] = "google:remoting:ice";
 
+const char kWebrtcTransportNamespace[] = "google:remoting:webrtc";
+
 const char kEmptyNamespace[] = "";
 const char kXmlNamespace[] = "http://www.w3.org/XML/1998/namespace";
 
 const int kPortMin = 1000;
 const int kPortMax = 65535;
 
 const NameMapElement<JingleMessage::ActionType> kActionTypes[] = {
   { JingleMessage::SESSION_INITIATE, "session-initiate" },
   { JingleMessage::SESSION_ACCEPT, "session-accept" },
   { JingleMessage::SESSION_TERMINATE, "session-terminate" },
@@ skipping 287 matching lines @@
 
   if (action != SESSION_TERMINATE) {
     XmlElement* content_tag =
         new XmlElement(QName(kJingleNamespace, "content"));
     jingle_tag->AddElement(content_tag);
 
     content_tag->AddAttr(QName(kEmptyNamespace, "name"),
                          ContentDescription::kChromotingContentName);
     content_tag->AddAttr(QName(kEmptyNamespace, "creator"), "initiator");
 
-    if (description.get())
+    if (description)
       content_tag->AddElement(description->ToXml());
 
-    if (transport_info)
+    if (transport_info) {
       content_tag->AddElement(new XmlElement(*transport_info));
+    } else if (description && description->config()->webrtc_supported()) {
+      content_tag->AddElement(
+          new XmlElement(QName(kWebrtcTransportNamespace, "transport")));
+    }
   }
 
   return root;
 }
 
 JingleMessageReply::JingleMessageReply()
     : type(REPLY_RESULT),
       error_type(NONE) {
 }
 
@@ skipping 133 matching lines @@
     result->AddElement(FormatIceCredentials(credentials));
   }
   for (const NamedCandidate& candidate : candidates) {
     result->AddElement(FormatIceCandidate(candidate));
   }
   return result;
 }
 
 }  // namespace protocol
 }  // namespace remoting