Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

core/html/HTMLFrameElement.idl

 /*
  * Copyright (C) 2006, 2007, 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.
  */
 
 // https://html.spec.whatwg.org/#htmlframeelement
 
 interface HTMLFrameElement : HTMLElement {
     [Reflect] attribute DOMString name;
     [Reflect] attribute DOMString scrolling;
     [Reflect, URL] attribute DOMString src;
     [Reflect] attribute DOMString frameBorder;
     [Reflect, URL] attribute DOMString longDesc;
     [Reflect] attribute boolean noResize;
-    [CheckSecurity=Node] readonly attribute Document? contentDocument;
+    [CheckSecurity=ReturnValue] readonly attribute Document? contentDocument;
     readonly attribute Window? contentWindow;
 
     [Reflect, TreatNullAs=EmptyString] attribute DOMString marginHeight;
     [Reflect, TreatNullAs=EmptyString] attribute DOMString marginWidth;
-
-    // FIXME: The spec defines getSVGDocument() for HTMLIFrameElement,
-    // HTMLEmbedElement and HTMLObjectElement, but not here.
-    [Measure, CheckSecurity=Node, RaisesException] Document? getSVGDocument();
 };