Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/aspnetwebstack/src/System.Web.WebPages.Deployment/IBuildManager.cs

@@ -0,0 +1,13 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+
+using System.IO;
+
+namespace System.Web.WebPages.Deployment
+{
+    internal interface IBuildManager
+    {
+        Stream CreateCachedFile(string fileName);
+
+        Stream ReadCachedFile(string fileName);
+    }
+}