Fixing DateTime values in dart2js serialized script values.

sdk/lib/html/dart2js/html_dart2js.dart

 /// The Dart HTML library.
 library dart.dom.html;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_collection-dev' hide Symbol;
 import 'dart:html_common';
 import 'dart:indexed_db';
 import 'dart:isolate';
 import 'dart:json' as json;
@@ skipping 10207 matching lines @@
 }
 // Copyright (c) 2012, 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.
 
 
 @DocsEditable
 @DomName('File')
 class File extends Blob native "File" {
 
-  DateTime get lastModifiedDate => _convertNativeToDart_DateTime(this._get_lastModifiedDate);
+  DateTime get lastModifiedDate => convertNativeToDart_DateTime(this._get_lastModifiedDate);
   @JSName('lastModifiedDate')
   @DomName('File.lastModifiedDate')
   @DocsEditable
   @Creates('Null')
   final dynamic _get_lastModifiedDate;
 
   @DomName('File.name')
   @DocsEditable
   final String name;
 
@@ skipping 2502 matching lines @@
   final String validationMessage;
 
   @DomName('HTMLInputElement.validity')
   @DocsEditable
   final ValidityState validity;
 
   @DomName('HTMLInputElement.value')
   @DocsEditable
   String value;
 
-  DateTime get valueAsDate => _convertNativeToDart_DateTime(this._get_valueAsDate);
+  DateTime get valueAsDate => convertNativeToDart_DateTime(this._get_valueAsDate);
   @JSName('valueAsDate')
   @DomName('HTMLInputElement.valueAsDate')
   @DocsEditable
   @Creates('Null')
   final dynamic _get_valueAsDate;
 
   void set valueAsDate(DateTime value) {
-    this._set_valueAsDate = _convertDartToNative_DateTime(value);
+    this._set_valueAsDate = convertDartToNative_DateTime(value);
   }
   void set _set_valueAsDate(/*dynamic*/ value) {
     JS("void", "#.valueAsDate = #", this, value);
   }
 
   @DomName('HTMLInputElement.valueAsNumber')
   @DocsEditable
   num valueAsNumber;
 
   @JSName('webkitEntries')
@@ skipping 2466 matching lines @@
 // 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.
 
 
 @DocsEditable
 @DomName('Metadata')
 // http://www.w3.org/TR/file-system-api/#the-metadata-interface
 @Experimental
 class Metadata native "Metadata" {
 
-  DateTime get modificationTime => _convertNativeToDart_DateTime(this._get_modificationTime);
+  DateTime get modificationTime => convertNativeToDart_DateTime(this._get_modificationTime);
   @JSName('modificationTime')
   @DomName('Metadata.modificationTime')
   @DocsEditable
   @Creates('Null')
   final dynamic _get_modificationTime;
 
   @DomName('Metadata.size')
   @DocsEditable
   final int size;
 }
@@ skipping 3777 matching lines @@
   final String id;
 
   @DomName('RTCStatsReport.local')
   @DocsEditable
   final RtcStatsReport local;
 
   @DomName('RTCStatsReport.remote')
   @DocsEditable
   final RtcStatsReport remote;
 
-  DateTime get timestamp => _convertNativeToDart_DateTime(this._get_timestamp);
+  DateTime get timestamp => convertNativeToDart_DateTime(this._get_timestamp);
   @JSName('timestamp')
   @DomName('RTCStatsReport.timestamp')
   @DocsEditable
   @Creates('Null')
   final dynamic _get_timestamp;
 
   @DomName('RTCStatsReport.type')
   @DocsEditable
   final String type;
 
@@ skipping 10133 matching lines @@
 // BSD-style license that can be found in the LICENSE file.
 
 
 // Conversions for Window.  These check if the window is the local
 // window, and if it's not, wraps or unwraps it with a secure wrapper.
 // We need to test for EventTarget here as well as it's a base type.
 // We omit an unwrapper for Window as no methods take a non-local
 // window as a parameter.
 
 
-DateTime _convertNativeToDart_DateTime(date) {
-  var millisSinceEpoch = JS('int', '#.getTime()', date);
-  return new DateTime.fromMillisecondsSinceEpoch(millisSinceEpoch, isUtc: true);
-}
-
-_convertDartToNative_DateTime(DateTime date) {
-  return JS('', 'new Date(#)', date.millisecondsSinceEpoch);
-}
-
 WindowBase _convertNativeToDart_Window(win) {
   if (win == null) return null;
   return _DOMWindowCrossFrame._createSafe(win);
 }
 
 EventTarget _convertNativeToDart_EventTarget(e) {
   if (e == null) {
     return null;
   }
   // Assume it's a Window if it contains the setInterval property.  It may be
@@ skipping 380 matching lines @@
       _position = nextPosition;
       return true;
     }
     _current = null;
     _position = _array.length;
     return false;
   }
 
   T get current => _current;
 }