Generate dart:html bindings for Dartium as well as Frog. All unittests now pass (or are disabled fo…

client/html/generated/html/frog/ValidityState.dart

+
+class _ValidityStateImpl implements ValidityState native "*ValidityState" {
+
+  final bool customError;
+
+  final bool patternMismatch;
+
+  final bool rangeOverflow;
+
+  final bool rangeUnderflow;
+
+  final bool stepMismatch;
+
+  final bool tooLong;
+
+  final bool typeMismatch;
+
+  final bool valid;
+
+  final bool valueMissing;
+}