Drop NotEnumerable for the on* event handler IDL attributes (again)

Source/core/html/HTMLBodyElement.idl

 /*
  * Copyright (C) 2006, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 interface HTMLBodyElement : HTMLElement {
     [Reflect, TreatNullAs=NullString] attribute DOMString aLink;
     [Reflect, TreatNullAs=NullString] attribute DOMString background;
     [Reflect, TreatNullAs=NullString] attribute DOMString bgColor;
     [Reflect, TreatNullAs=NullString] attribute DOMString link;
     [Reflect, TreatNullAs=NullString] attribute DOMString text;
     [Reflect, TreatNullAs=NullString] attribute DOMString vLink;
 
     // Event handler attributes
-    [NotEnumerable] attribute EventHandler onbeforeunload;
-    [NotEnumerable] attribute EventHandler onhashchange;
-    [NotEnumerable] attribute EventHandler onmessage;
-    [NotEnumerable] attribute EventHandler onoffline;
-    [NotEnumerable] attribute EventHandler ononline;
-    [NotEnumerable] attribute EventHandler onpopstate;
-    [NotEnumerable] attribute EventHandler onresize;
-    [NotEnumerable] attribute EventHandler onstorage;
-    [NotEnumerable] attribute EventHandler onunload;
+    attribute EventHandler onbeforeunload;
+    attribute EventHandler onhashchange;
+    attribute EventHandler onmessage;
+    attribute EventHandler onoffline;
+    attribute EventHandler ononline;
+    attribute EventHandler onpopstate;
+    attribute EventHandler onresize;
+    attribute EventHandler onstorage;
+    attribute EventHandler onunload;
 
-    [Conditional=ORIENTATION_EVENTS, NotEnumerable] attribute EventHandler onorientationchange;
+    [Conditional=ORIENTATION_EVENTS] attribute EventHandler onorientationchange;
 
     // Overrides of Element attributes (with different implementation in bindings).
-    [NotEnumerable] attribute EventHandler onblur;
-    [NotEnumerable] attribute EventHandler onerror;
-    [NotEnumerable] attribute EventHandler onfocus;
-    [NotEnumerable] attribute EventHandler onload;
+    attribute EventHandler onblur;
+    attribute EventHandler onerror;
+    attribute EventHandler onfocus;
+    attribute EventHandler onload;
 
     // Not implemented yet.
-    // attribute [NotEnumerable] EventHandler onafterprint;
-    // attribute [NotEnumerable] EventHandler onbeforeprint;
-    // attribute [NotEnumerable] EventHandler onredo;
-    // attribute [NotEnumerable] EventHandler onundo;
+    // attribute EventHandler onafterprint;
+    // attribute EventHandler onbeforeprint;
+    // attribute EventHandler onredo;
+    // attribute EventHandler onundo;
 };