Imported Upstream version 4.2.0.179

Former-commit-id: 4610231f55806d2a05ed69e5ff3faa7336cc1479

external/referencesource/System.Configuration/System/Configuration/Update.cs

@@ -0,0 +1,42 @@
+//------------------------------------------------------------------------------
+// <copyright file="Update.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Configuration {
+
+    //
+    // Represents an update to a configuration section, either in its
+    // declaration or its definition.
+    //
+    abstract internal class Update {
+        private bool    _moved;
+        private bool    _retrieved;
+        private string  _configKey;
+        private string  _updatedXml;
+
+        internal Update(string configKey, bool moved, string updatedXml) {
+            _configKey = configKey;
+            _moved = moved;
+            _updatedXml = updatedXml;
+        }
+
+        internal string ConfigKey {
+            get {return _configKey;}
+        }
+
+        internal bool Moved {
+            get {return _moved;}
+        }
+
+        internal string UpdatedXml {
+            get {return _updatedXml;}
+        }
+
+        internal bool Retrieved {
+            get {return _retrieved;}
+            set {_retrieved = value;}
+        }
+    }
+}