Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850

mcs/class/referencesource/System.Web/State/SessionStateUtil.cs

@@ -73,6 +73,24 @@ namespace System.Web.SessionState {
             return context.Application.SessionStaticObjects.Clone();
         }
 
+        /// <summary>
+        /// Gets a value that indicates whether session state is required by the context.
+        /// </summary>
+        /// <param name="context">The HttpContext.</param>
+        /// <returns>A value that indicates whether session state is required by the context.</returns>
+        static public bool IsSessionStateRequired(HttpContext context) {
+            return context.RequiresSessionState;
+        }
+
+        /// <summary>
+        /// Gets a value that indicates whether session state is read-only in the context.
+        /// </summary>
+        /// <param name="context">The HttpContext.</param>
+        /// <returns>A value that indicates whether session state is read-only in the context.</returns>
+        static public bool IsSessionStateReadOnly(HttpContext context) {
+            return context.ReadOnlySessionState;
+        }
+
         internal static SessionStateStoreData CreateLegitStoreData(HttpContext context,
                                                     ISessionStateItemCollection sessionItems,
                                                     HttpStaticObjectsCollection staticObjects,