Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

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

@@ -0,0 +1,11 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+
+namespace System.Web.Mvc
+{
+    internal interface IViewStartPageChild
+    {
+        HtmlHelper<object> Html { get; }
+        UrlHelper Url { get; }
+        ViewContext ViewContext { get; }
+    }
+}