added support for headers on LongPollingTransport

cometd/client/transport/HttpClientTransport.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.Specialized;
 using System.Net;
 using System.Text;
 
@@ -9,10 +10,12 @@ public abstract class HttpClientTransport : ClientTransport
     {
         private String url;
         private CookieCollection cookieCollection;
+        private WebHeaderCollection headerCollection;
 
         protected HttpClientTransport(String name, IDictionary<String, Object> options)
             : base(name, options)
         {
+            setHeaderCollection(new WebHeaderCollection());
         }
 
         protected String getURL()
@@ -41,5 +44,22 @@ protected internal void addCookie(Cookie cookie)
             if (cookieCollection != null)
                 cookieCollection.Add(cookie);
         }
+
+        protected WebHeaderCollection getHeaderCollection()
+        {
+            return headerCollection;
+        }
+
+        public void setHeaderCollection(WebHeaderCollection headerCollection)
+        {
+            this.headerCollection = headerCollection;
+        }
+
+        protected internal void addHeaders(NameValueCollection headers)
+        {
+            WebHeaderCollection headerCollection = this.headerCollection;
+            if (headerCollection != null)
+                headerCollection.Add(headers);
+        }
     }
 }

cometd/client/transport/LongPollingTransport.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.Specialized;
 using System.Net;
 using System.IO;
 using System.Runtime.Serialization.Json;
@@ -158,6 +159,10 @@ public override void send(ITransportListener listener, IList<IMutableMessage> me
                 request.CookieContainer = new CookieContainer();
             request.CookieContainer.Add(getCookieCollection());
 
+            if (request.Headers == null)
+                request.Headers = new WebHeaderCollection();
+            request.Headers.Add(getHeaderCollection());
+
             JavaScriptSerializer jsonParser = new JavaScriptSerializer();
             String content = jsonParser.Serialize(ObjectConverter.ToListOfDictionary(messages));
 
@@ -278,6 +283,11 @@ private static void TimeoutCallback(object state, bool timedOut)
             }
         }
 
+        public void AddHeaders(NameValueCollection headers)
+        {
+            addHeaders(headers);
+        }
+
 
         public class TransportExchange
         {