Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Workflow.Runtime/Tracking/IProfileNotification.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Workflow.ComponentModel;
+using System.Runtime.Serialization;
+using System.Security.Permissions;
+using System.Workflow.Runtime.Hosting;
+
+namespace System.Workflow.Runtime.Tracking
+{
+    /// <summary>
+    /// Interface for tracking services that provide notifications when a new version of a profile is availabe.  
+    /// The tracking runtime subscribes to the UpdateProfile and RemoveProfile events and updates its cache as events are raised.  
+    /// This decreases the number of requests for profiles that are made to a tracking service.  The GetProfiles methods 
+    /// are still in use but they are not called as frequently.
+    /// </summary>
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public interface IProfileNotification
+    {
+        /// <summary>
+        /// Use this event to inform the tracking runtime that a new profile version is available for a given workflow type.
+        /// </summary>
+        event EventHandler<ProfileUpdatedEventArgs> ProfileUpdated;
+        /// <summary>
+        /// Use this event to inform the tracking runtime that new instances of the specified workflow type should not have a profile.
+        /// </summary>
+        event EventHandler<ProfileRemovedEventArgs> ProfileRemoved;
+    }
+}