Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

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

@@ -0,0 +1,27 @@
+namespace System.Web.Mvc {
+    using System;
+    using System.Collections.Generic;
+    using System.Collections.Specialized;
+
+    public static class NameValueCollectionExtensions {
+
+        public static void CopyTo(this NameValueCollection collection, IDictionary<string, object> destination) {
+            CopyTo(collection, destination, false /* replaceEntries */);
+        }
+
+        public static void CopyTo(this NameValueCollection collection, IDictionary<string, object> destination, bool replaceEntries) {
+            if (collection == null) {
+                throw new ArgumentNullException("collection");
+            }
+            if (destination == null) {
+                throw new ArgumentNullException("destination");
+            }
+
+            foreach (string key in collection.Keys) {
+                if (replaceEntries || !destination.ContainsKey(key)) {
+                    destination[key] = collection[key];
+                }
+            }
+        }
+    }
+}