Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

mcs/class/corlib/corefx/File.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Security.AccessControl;
+
+namespace System.IO
+{
+	public partial class File
+	{
+		public static FileSecurity GetAccessControl (string path)
+		{
+			// AccessControlSections.Audit requires special permissions.
+			return GetAccessControl (path,
+						 AccessControlSections.Owner |
+						 AccessControlSections.Group |
+						 AccessControlSections.Access);
+		}
+
+		public static FileSecurity GetAccessControl (string path, AccessControlSections includeSections)
+		{
+			return new FileSecurity (path, includeSections);
+		}
+
+		public static void SetAccessControl (string path,
+						     FileSecurity fileSecurity)
+		{
+			if (null == fileSecurity)
+				throw new ArgumentNullException ("fileSecurity");
+
+			fileSecurity.PersistModifications (path);
+		}
+    }
+}