Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/Routing/UrlAuthFailureHandler.cs

@@ -0,0 +1,14 @@
+namespace System.Web.Routing {
+    // Token class used to signal Auth failures, not meant to be used as a handler    
+    internal sealed class UrlAuthFailureHandler : IHttpHandler {
+        public void ProcessRequest(HttpContext context) {
+            throw new NotImplementedException();
+        }
+
+        public bool IsReusable { 
+            get {
+                return true;
+            }
+        }
+    }
+}