Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/class/System.Web.Mvc3/Mvc/IMetadataAware.cs

@@ -0,0 +1,10 @@
+namespace System.Web.Mvc {
+    // This interface is implemented by attributes which wish to contribute to the
+    // ModelMetadata creation process without needing to write a custom metadata
+    // provider. It is consumed by AssociatedMetadataProvider, so this behavior is
+    // automatically inherited by all classes which derive from it (notably, the
+    // DataAnnotationsModelMetadataProvider).
+    public interface IMetadataAware {
+        void OnMetadataCreated(ModelMetadata metadata);
+    }
+}