sdk/lib/html/dartium/html_dartium.dart

Index: sdk/lib/html/dartium/html_dartium.dart
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index 5468945b736510af076503ebc6842675554ff62b..02bcaea027a7e2681938de7d52d861988f0fc78a 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -9391,8 +9391,8 @@ abstract class Element extends Node implements ParentNode, ChildNode {
    *
    * * [isTagSupported]
    */
-  factory Element.tag(String tag, [String typeExtention]) =>
-      _ElementFactoryProvider.createElement_tag(tag, typeExtention);
+  factory Element.tag(String tag) =>
+      _ElementFactoryProvider.createElement_tag(tag);
 
   /// Creates a new `<a>` element.
   ///
@@ -9709,7 +9709,7 @@ abstract class Element extends Node implements ParentNode, ChildNode {
    * The tag should be a valid HTML tag name.
    */
   static bool isTagSupported(String tag) {
-    var e = _ElementFactoryProvider.createElement_tag(tag, null);
+    var e = _ElementFactoryProvider.createElement_tag(tag);
     return e is Element && !(e is UnknownElement);
   }
 
@@ -10982,8 +10982,8 @@ abstract class Element extends Node implements ParentNode, ChildNode {
 class _ElementFactoryProvider {
 
   @DomName('Document.createElement')
-  static Element createElement_tag(String tag, String typeExtension) =>
-      document.$dom_createElement(tag, typeExtension);
+  static Element createElement_tag(String tag) =>
+      document.$dom_createElement(tag);
 }
 
 
@@ -13227,75 +13227,8 @@ class HtmlDocument extends Document {
   String get visibilityState => _webkitVisibilityState;
 
   @Experimental
-  /**
-   * Register a custom subclass of Element to be instantiatable by the DOM.
-   *
-   * This is necessary to allow the construction of any custom elements.
-   *
-   * The class being registered must either subclass HtmlElement or SvgElement.
-   * If they subclass these directly then they can be used as:
-   *
-   *     class FooElement extends HtmlElement{
-   *        void created() {
-   *          print('FooElement created!');
-   *        }
-   *     }
-   *
-   *     main() {
-   *       document.register('x-foo', FooElement);
-   *       var myFoo = new Element.tag('x-foo');
-   *       // prints 'FooElement created!' to the console.
-   *     }
-   *
-   * The custom element can also be instantiated via HTML using the syntax
-   * `<x-foo></x-foo>`
-   *
-   * Other elements can be subclassed as well:
-   *
-   *     class BarElement extends InputElement{
-   *        void created() {
-   *          print('BarElement created!');
-   *        }
-   *     }
-   *
-   *     main() {
-   *       document.register('x-bar', BarElement);
-   *       var myBar = new Element.tag('input', 'x-bar');
-   *       // prints 'BarElement created!' to the console.
-   *     }
-   *
-   * This custom element can also be instantiated via HTML using the syntax
-   * `<input is="x-bar"></input>`
-   *
-   * The [nativeTagName] parameter is needed by platforms without native support
-   * when subclassing a native type other than:
-   *
-   * * HtmlElement
-   * * SvgElement
-   * * AnchorElement
-   * * AudioElement
-   * * ButtonElement
-   * * CanvasElement
-   * * DivElement
-   * * ImageElement
-   * * InputElement
-   * * LIElement
-   * * LabelElement
-   * * MenuElement
-   * * MeterElement
-   * * OListElement
-   * * OptionElement
-   * * OutputElement
-   * * ParagraphElement
-   * * PreElement
-   * * ProgressElement
-   * * SelectElement
-   * * SpanElement
-   * * UListElement
-   * * VideoElement
-   */
-  void register(String tag, Type customElementClass, {String nativeTagName}) {
-    _Utils.register(tag, customElementClass);
+  void register(String tag, Type custom) {
+    _Utils.register(tag, custom);
   }
 
   // Note: used to polyfill <template>