Add constructors to all the event classes.

client/html/src/KeyboardEvent.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.
 
-// WARNING: Do not edit - generated code.
-
-interface KeyboardEvent extends UIEvent {
+interface KeyboardEvent extends UIEvent factory KeyboardEventWrappingImplementation {
 
   static final int KEY_LOCATION_LEFT = 0x01;
 
   static final int KEY_LOCATION_NUMPAD = 0x03;
 
   static final int KEY_LOCATION_RIGHT = 0x02;
 
   static final int KEY_LOCATION_STANDARD = 0x00;
 
+  KeyboardEvent(String type, Window view, String keyIdentifier, int keyLocation,
+      [bool canBubble, bool cancelable, bool ctrlKey, bool altKey,
+      bool shiftKey, bool metaKey, bool altGraphKey]);
+
   bool get altGraphKey();
 
   bool get altKey();
 
   bool get ctrlKey();
 
   String get keyIdentifier();
 
   int get keyLocation();
 
   bool get metaKey();
 
   bool get shiftKey();
 
   bool getModifierState(String keyIdentifierArg);
-
-  void initKeyboardEvent(String type, bool canBubble, bool cancelable, Window view, String keyIdentifier, int keyLocation, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey);
 }
 
 // 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.
 
 /**
  * Defines the standard key locations returned by
  * KeyboardEvent.getKeyLocation.
  */
@@ skipping 517 matching lines @@
    * Sound) key
    */
   static final String DEC_SEMIVOICED_SOUND= "DeadSemivoicedSound";
 
   /**
    * Key value used when an implementation is unable to identify another key
    * value, due to either hardware, platform, or software constraints
    */
   static final String UNIDENTIFIED = "Unidentified";
 }