Remove lib/dom directory!

lib/dom/templates/html/impl/impl_EventTarget.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.
-
-class _EventsImpl implements Events {
-  /* Raw event target. */
-  // TODO(jacobr): it would be nice if we could specify this as
-  // _EventTargetImpl or EventTarget
-  final Dynamic _ptr;
-
-  _EventsImpl(this._ptr);
-
-  _EventListenerListImpl operator [](String type) {
-    return new _EventListenerListImpl(_ptr, type);
-  }
-}
-
-class _EventListenerListImpl implements EventListenerList {
-  
-  // TODO(jacobr): make this _EventTargetImpl
-  final Dynamic _ptr;
-  final String _type;
-
-  _EventListenerListImpl(this._ptr, this._type);
-
-  // TODO(jacobr): implement equals.
-
-  _EventListenerListImpl add(EventListener listener,
-      [bool useCapture = false]) {
-    _add(listener, useCapture);
-    return this;
-  }
-
-  _EventListenerListImpl remove(EventListener listener,
-      [bool useCapture = false]) {
-    _remove(listener, useCapture);
-    return this;
-  }
-
-  bool dispatch(Event evt) {
-    // TODO(jacobr): what is the correct behavior here. We could alternately
-    // force the event to have the expected type.
-    assert(evt.type == _type);
-    return _ptr.$dom_dispatchEvent(evt);
-  }
-
-  void _add(EventListener listener, bool useCapture) {
-    _ptr.$dom_addEventListener(_type, listener, useCapture);
-  }
-
-  void _remove(EventListener listener, bool useCapture) {
-    _ptr.$dom_removeEventListener(_type, listener, useCapture);
-  }
-}
-
-
-class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
-
-  Events get on() => new _EventsImpl(this);
-$!MEMBERS
-}