Reverting 17420 "Speech recognition APIs" which broke dartium.

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 156573f76ef50732d662d7b6437c54503657b90b..d433cbf83736b7a432d4d421767c053c747b93ff 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -10086,25 +10086,8 @@ class Event native "*Event" {
   //
   // Contrary to JS, we default canBubble and cancelable to true, since that's
   // what people want most of the time anyway.
-  factory Event(String type,
-      [bool canBubble = true, bool cancelable = true]) {
-    return new Event.type('Event', type, canBubble, cancelable);
-  }
-
-  /**
-   * Creates a new Event object of the specified type.
-   *
-   * This is analogous to document.createEvent.
-   * Normally events should be created via their constructors, if available.
-   *
-   *     var e = new Event.type('MouseEvent', 'mousedown', true, true);
-   */
-  factory Event.type(String eventType, String name, [bool canBubble = true,
-      bool cancelable = true]) {
-    final Event e = document.$dom_createEvent(eventType);
-    e.$dom_initEvent(name, canBubble, cancelable);
-    return e;
-  }
+  factory Event(String type, [bool canBubble = true, bool cancelable = true]) =>
+      _EventFactoryProvider.createEvent(type, canBubble, cancelable);
 
   static const int AT_TARGET = 2;
 
@@ -20378,15 +20361,14 @@ class SpeechInputResult native "*SpeechInputResult" {
   @DomName('SpeechInputResult.utterance')
   final String utterance;
 }
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// 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('SpeechRecognition')
-@SupportedBrowser(SupportedBrowser.CHROME, '25')
-@Experimental()
 class SpeechRecognition extends EventTarget native "*SpeechRecognition" {
 
   @DocsEditable
@@ -20435,9 +20417,7 @@ class SpeechRecognition extends EventTarget native "*SpeechRecognition" {
 
   @DocsEditable
   factory SpeechRecognition() => SpeechRecognition._create();
-
-  /// Checks if this type is supported on the current platform.
-  static bool get supported => JS('bool', '!!(window.SpeechRecognition || window.webkitSpeechRecognition)');
+  static SpeechRecognition _create() => JS('SpeechRecognition', 'new SpeechRecognition()');
 
   @DocsEditable
   @DomName('EventTarget.addEventListener, EventTarget.removeEventListener, EventTarget.dispatchEvent')
@@ -20534,11 +20514,6 @@ class SpeechRecognition extends EventTarget native "*SpeechRecognition" {
   @DocsEditable
   @DomName('SpeechRecognition.start')
   Stream<Event> get onStart => startEvent.forTarget(this);
-
-  static SpeechRecognition _create() {
-    return JS('SpeechRecognition',
-        'new (window.SpeechRecognition || window.webkitSpeechRecognition)()');
-  }
 }
 
 @DocsEditable
@@ -20587,8 +20562,6 @@ class SpeechRecognitionEvents extends Events {
 
 @DocsEditable
 @DomName('SpeechRecognitionAlternative')
-@SupportedBrowser(SupportedBrowser.CHROME, '25')
-@Experimental()
 class SpeechRecognitionAlternative native "*SpeechRecognitionAlternative" {
 
   @DocsEditable
@@ -20607,8 +20580,6 @@ class SpeechRecognitionAlternative native "*SpeechRecognitionAlternative" {
 
 @DocsEditable
 @DomName('SpeechRecognitionError')
-@SupportedBrowser(SupportedBrowser.CHROME, '25')
-@Experimental()
 class SpeechRecognitionError extends Event native "*SpeechRecognitionError" {
 
   @DocsEditable
@@ -20627,8 +20598,6 @@ class SpeechRecognitionError extends Event native "*SpeechRecognitionError" {
 
 @DocsEditable
 @DomName('SpeechRecognitionEvent')
-@SupportedBrowser(SupportedBrowser.CHROME, '25')
-@Experimental()
 class SpeechRecognitionEvent extends Event native "*SpeechRecognitionEvent" {
 
   @DocsEditable
@@ -20659,8 +20628,6 @@ class SpeechRecognitionEvent extends Event native "*SpeechRecognitionEvent" {
 
 @DocsEditable
 @DomName('SpeechRecognitionResult')
-@SupportedBrowser(SupportedBrowser.CHROME, '25')
-@Experimental()
 class SpeechRecognitionResult native "*SpeechRecognitionResult" {
 
   @DocsEditable