Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System/compmod/system/componentmodel/RunWorkerCompletedEventArgs.cs

@@ -0,0 +1,44 @@
+//------------------------------------------------------------------------------
+// <copyright file="RunWorkerCompletedEventArgs.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.ComponentModel 
+{
+    using System.Security.Permissions;
+
+    [HostProtection(SharedState = true)]
+    public class RunWorkerCompletedEventArgs : AsyncCompletedEventArgs
+    {
+        private object result;
+
+        public RunWorkerCompletedEventArgs(object result, 
+                                           Exception error,
+                                           bool cancelled)
+            : base(error, cancelled, null)
+        {
+            this.result = result;
+        }
+        
+        public object Result
+        {
+            get
+            {
+                base.RaiseExceptionIfNecessary();
+                return result;
+            }
+        }
+        
+        // Hide from editor, since never used.
+        [ Browsable(false), EditorBrowsable(EditorBrowsableState.Never) ]
+        public new object UserState
+        {
+            get
+            {
+                return base.UserState;
+            }
+        }
+    }
+}
+