Make DOMType the root of DOM implementation types.

client/dom/generated/src/frog/Database.dart

Index: client/dom/generated/src/frog/Database.dart
diff --git a/client/dom/generated/src/frog/Database.dart b/client/dom/generated/src/frog/Database.dart
index 159bdd4ab03d4d7571641cfcfc49017c056fc5e9..004b32958b560b5efc8bef4f73233c9fc5104f07 100644
--- a/client/dom/generated/src/frog/Database.dart
+++ b/client/dom/generated/src/frog/Database.dart
@@ -1,5 +1,5 @@
 
-class DatabaseJS implements Database native "*Database" {
+class DatabaseJs extends DOMTypeJs implements Database native "*Database" {
 
   String get version() native "return this.version;";
 
@@ -8,8 +8,4 @@ class DatabaseJS implements Database native "*Database" {
   void readTransaction(SQLTransactionCallback callback, [SQLTransactionErrorCallback errorCallback = null, VoidCallback successCallback = null]) native;
 
   void transaction(SQLTransactionCallback callback, [SQLTransactionErrorCallback errorCallback = null, VoidCallback successCallback = null]) native;
-
-  var dartObjectLocalStorage;
-
-  String get typeName() native;
 }