Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/aspnetwebstack/src/System.Web.Mvc/AllowAnonymousAttribute.cs

@@ -0,0 +1,13 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+
+namespace System.Web.Mvc
+{
+    /// <summary>
+    /// Actions and controllers with the AllowAnonymous attribute are skipped by the Authorize attribute
+    /// on authorization. See AccountController.cs in the project template for an example.
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
+    public sealed class AllowAnonymousAttribute : Attribute
+    {
+    }
+}