Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/ModelBinding/UserProfileAttribute.cs

@@ -0,0 +1,16 @@
+namespace System.Web.ModelBinding {
+    using System;
+
+    [AttributeUsage(AttributeTargets.Parameter, Inherited = false, AllowMultiple = false)]
+    public sealed class UserProfileAttribute : Attribute, IValueProviderSource {
+
+        public IValueProvider GetValueProvider(ModelBindingExecutionContext modelBindingExecutionContext) {
+            if (modelBindingExecutionContext == null) {
+                throw new ArgumentNullException("modelBindingExecutionContext");
+            }
+
+            return new UserProfileValueProvider(modelBindingExecutionContext);
+        }
+
+    }
+}