Oilpan: add [WillBeGarbageCollected] for Element.

Source/core/dom/Element.idl

 /*
  * Copyright (C) 2006, 2007, 2009 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.
  */
 
 [
-    SpecialWrapFor=HTMLElement|SVGElement
+    SpecialWrapFor=HTMLElement|SVGElement,
+    WillBeGarbageCollected,

[haraken, 2014/05/21 17:56:28]

Add a FIXME to remove this once the Node becomes [WillBeGarbageCollected]?

[sof, 2014/05/21 21:45:14]

Good idea, done.

 ] interface Element : Node {
 
     // DOM Level 1 Core
 
     [TreatReturnedNullStringAs=Null] readonly attribute DOMString tagName;
 
     [TreatReturnedNullStringAs=Null] DOMString getAttribute(DOMString name);
     [RaisesException, CustomElementCallbacks] void setAttribute(DOMString name, DOMString value);
     [CustomElementCallbacks] void removeAttribute(DOMString name);
     [MeasureAs=ElementGetAttributeNode] Attr getAttributeNode([Default=Undefined] optional DOMString name); // Removed from DOM4.
@@ skipping 106 matching lines @@
     [RuntimeEnabled=Touch] attribute EventHandler ontouchend;
     [RuntimeEnabled=Touch] attribute EventHandler ontouchmove;
     [RuntimeEnabled=Touch] attribute EventHandler ontouchstart;
     attribute EventHandler onwebkitfullscreenchange;
     attribute EventHandler onwebkitfullscreenerror;
     [PerWorldBindings, LogActivity=SetterOnly] attribute EventHandler onwheel;
 };
 
 Element implements ParentNode;
 Element implements ChildNode;