Convert DOM and HTML frog to dart2js.

lib/html/src/frog_LocationWrapper.dart

-// 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.
-
-
-// On Firefox 11, the object obtained from 'window.location' is very strange.
-// It can't be monkey-patched and seems immune to putting methods on
-// Object.prototype.  We are forced to wrap the object.
-
-class _LocationWrapper implements Location {
-
-  final _ptr;  // Opaque reference to real location.
-
-  _LocationWrapper(this._ptr);
-
-  // TODO(sra): Replace all the _set and _get calls with 'JS' forms.
-
-  // final List<String> ancestorOrigins;
-  List<String> get ancestorOrigins() => _get(_ptr, 'ancestorOrigins');
-
-  // String hash;
-  String get hash() => _get(_ptr, 'hash');
-  void set hash(String value) => _set(_ptr, 'hash', value);
-
-  // String host;
-  String get host() => _get(_ptr, 'host');
-  void set host(String value) => _set(_ptr, 'host', value);
-
-  // String hostname;
-  String get hostname() => _get(_ptr, 'hostname');
-  void set hostname(String value) => _set(_ptr, 'hostname', value);
-
-  // String href;
-  String get href() => _get(_ptr, 'href');
-  void set href(String value) => _set(_ptr, 'href', value);
-
-  // final String origin;
-  String get origin() => _get(_ptr, 'origin');
-
-  // String pathname;
-  String get pathname() => _get(_ptr, 'pathname');
-  void set pathname(String value) => _set(_ptr, 'pathname', value);
-
-  // String port;
-  String get port() => _get(_ptr, 'port');
-  void set port(String value) => _set(_ptr, 'port', value);
-
-  // String protocol;
-  String get protocol() => _get(_ptr, 'protocol');
-  void set protocol(String value) => _set(_ptr, 'protocol', value);
-
-  // String search;
-  String get search() => _get(_ptr, 'search');
-  void set search(String value) => _set(_ptr, 'search', value);
-
-
-  void assign(String url) => _assign(_ptr, url);
-
-  void reload() => _reload(_ptr);
-
-  void replace(String url) => _replace(_ptr, url);
-
-  String toString() => _toString(_ptr);
-
-
-  static _get(p, m) native 'return p[m];';
-  static _set(p, m, v) native 'p[m] = v;';
-
-  static _assign(p, url) native 'p.assign(url);';
-  static _reload(p) native 'p.reload()';
-  static _replace(p, url) native 'p.replace(url);';
-  static _toString(p) native 'return p.toString();';
-}