Modified ResponseMessageWrapper to dispose the client

#1908

src/Microsoft.AspNet.SignalR.Client/Http/HttpResponseMessageWrapper.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+
+namespace Microsoft.AspNet.SignalR.Client.Http
+{
+    public class HttpResponseMessageWrapper : IResponse
+    {
+        private HttpResponseMessage _httpResponseMessage;
+        private HttpClient _client;
+
+        public HttpResponseMessageWrapper(HttpResponseMessage httpResponseMessage, HttpClient client)
+        {
+            _httpResponseMessage = httpResponseMessage;
+            _client = client;
+        }
+
+        public string ReadAsString()
+        {
+            return _httpResponseMessage.Content.ReadAsStringAsync().Result;
+        }
+
+        public Stream GetStream()
+        {
+            return _httpResponseMessage.Content.ReadAsStreamAsync().Result;
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                _httpResponseMessage.Dispose();
+                _client.Dispose();
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+    }
+}