Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System/net/System/Net/_emptywebproxy.cs

@@ -0,0 +1,47 @@
+//------------------------------------------------------------------------------
+// <copyright file="_emptywebproxy.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Net
+{
+    using System.Collections.Generic;
+
+    [Serializable]
+    internal sealed class EmptyWebProxy : IAutoWebProxy {
+
+        [NonSerialized]
+        private ICredentials m_credentials;
+
+        public EmptyWebProxy() {
+        }
+
+        //
+        // IWebProxy interface
+        //
+        public Uri GetProxy(Uri uri) {
+            // this method won't get called by NetClasses because of the IsBypassed test below
+            return uri; 
+        }
+        public bool IsBypassed(Uri uri) {
+            return true; // no proxy, always bypasses
+        }
+        public ICredentials Credentials {
+            get {
+                return m_credentials;
+            }
+            set {
+                m_credentials = value; // doesn't do anything, but doesn't break contract either
+            }
+        }
+
+        //
+        // IAutoWebProxy interface
+        //
+        ProxyChain IAutoWebProxy.GetProxies(Uri destination)
+        {
+            return new DirectProxy(destination);
+        }
+    }
+}