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

client/dom/templates/html/frog/html_frog.darttemplate

 // 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.
 
 // DO NOT EDIT
 // Auto-generated dart:html library.
 
 #library("html");
 
 $!GENERATED_DART_FILES
 
 #source('../dom/src/EventListener.dart');
 #source('../dom/src/KeyLocation.dart');
 #source('../dom/src/KeyName.dart');
 #source('../dom/src/ReadyState.dart');
 #source('../dom/src/TimeoutHandler.dart');
 #source('../dom/src/_Collections.dart');
+#source('../html/src/Measurement.dart');
+#source('../html/src/shared_FactoryProviders.dart');
 #source('../html/src/frog_FactoryProviders.dart');
+#source('../html/src/_Testing.dart');
 #source('../html/src/Device.dart');
 #source('../dom/src/_ListIterators.dart');
 #source('../dom/src/_Lists.dart');
 
-// TODO(sra): What 'window' do we get in a worker?  Perhaps this
-// should return the interface type.
-Window get window() native "return window;";
-_WindowJs get _window() native "return window;";
+_WindowImpl _cachedWindow;
+_DocumentImpl _cachedDocument;
 
-Document get document() native "return window.document.documentElement;";
-_DocumentJs get _document() native "return window.document.documentElement;";
+void _init() {
+  _cachedDocument = _document;
+  _cachedWindow = _window;
+  // Feature detect that dart:dom and dart:html are not both loaded by
+  // checking for the presence of a bug that manifests itself when both
+  // libraries are loaded.
+  // TODO(jacobr): remove this code once b/1911 is fixed and the frog compiler
+  // is changed to generate compile time errors if two libraries that define
+  // the same native types in conflicting ways are imported.
+  var element = new Element.tag('body');
+  element.innerHTML = 'f';
+  if (element.text == '') {
+    _cachedWindow.console.error(
+      'Cannot import dart:html and dart:dom within the same application.');
+    throw new UnsupportedOperationException(
+      'Cannot import dart:html and dart:dom within the same application.');
+  }
+}
+
+Window get window() {
+  if (_cachedWindow == null) {
+    _init();
+  }
+  return _cachedWindow;
+}
+
+_WindowImpl get _window() native "return window;";
+
+Document get document() {
+  if (_cachedDocument == null) {
+    _init();
+  }
+  return _cachedDocument;
+}
+
+_DocumentImpl get _document() native "return window.document.documentElement;";