Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

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

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+//------------------------------------------------------------------------------
+// <copyright file="LicenseContext.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.ComponentModel {
+    using Microsoft.Win32;
+    using System;
+    using System.Diagnostics;
+    using System.Reflection;
+    using System.Runtime.Remoting;
+    using System.Security.Permissions;
+
+    /// <devdoc>
+    ///    <para>Specifies when the licensed object can be used.</para>
+    /// </devdoc>
+    [HostProtection(SharedState = true)]
+    public class LicenseContext : IServiceProvider
+    {
+
+        /// <devdoc>
+        ///    <para>When overridden in a derived class, gets a value that specifies when a license can be used.</para>
+        /// </devdoc>
+        public virtual LicenseUsageMode UsageMode { 
+            get {
+                return LicenseUsageMode.Runtime;
+            }
+        }
+
+        /// <devdoc>
+        ///    <para>When overridden in a derived class, gets a saved license 
+        ///       key for the specified type, from the specified resource assembly.</para>
+        /// </devdoc>
+        public virtual string GetSavedLicenseKey(Type type, Assembly resourceAssembly) {
+            return null;
+        }
+
+        /// <devdoc>
+        ///    <para>When overridden in a derived class, will return an object that implements the asked for service.</para>
+        /// </devdoc>
+        public virtual object GetService(Type type) {
+            return null;
+        }
+
+        /// <devdoc>
+        ///    <para>When overridden in a derived class, sets a license key for the specified type.</para>
+        /// </devdoc>
+        public virtual void SetSavedLicenseKey(Type type, string key) {
+            // no-op;
+        }
+    }
+}