Support 'Conditional' idl attribute.

client/dom/generated/src/wrapping/_HTMLContentElementWrappingImplementation.dart

Index: client/dom/generated/src/wrapping/_HTMLContentElementWrappingImplementation.dart
diff --git a/client/dom/generated/src/wrapping/_HTMLContentElementWrappingImplementation.dart b/client/dom/generated/src/wrapping/_HTMLContentElementWrappingImplementation.dart
deleted file mode 100644
index fd75bd08c03c3935d7118617ede0b88fd24e9c8f..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/wrapping/_HTMLContentElementWrappingImplementation.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// WARNING: Do not edit - generated code.
-
-class _HTMLContentElementWrappingImplementation extends _HTMLElementWrappingImplementation implements HTMLContentElement {
-  _HTMLContentElementWrappingImplementation() : super() {}
-
-  static create__HTMLContentElementWrappingImplementation() native {
-    return new _HTMLContentElementWrappingImplementation();
-  }
-
-  String get select() { return _get_select(this); }
-  static String _get_select(var _this) native;
-
-  void set select(String value) { _set_select(this, value); }
-  static void _set_select(var _this, String value) native;
-
-  String get typeName() { return "HTMLContentElement"; }
-}