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

client/html/generated/html/dartium/Attr.dart

+
+class _AttrImpl extends _NodeImpl implements Attr {
+  _AttrImpl._wrap(ptr) : super._wrap(ptr);
+
+  bool get isId() => _wrap(_ptr.isId);
+
+  String get name() => _wrap(_ptr.name);
+
+  Element get ownerElement() => _wrap(_ptr.ownerElement);
+
+  bool get specified() => _wrap(_ptr.specified);
+
+  String get value() => _wrap(_ptr.value);
+
+  void set value(String value) { _ptr.value = _unwrap(value); }
+}