Get rid of custom code for HTMLDocument.write() / writeln()

Source/core/html/HTMLDocument.idl

 /*
  * Copyright (C) 2006, 2007, 2008 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 HTMLDocument : Document {
     [Custom, CustomElementCallbacks] void open();
     void close();
-    [Custom, PerWorldBindings, ActivityLogging=ForIsolatedWorlds, CustomElementCallbacks] void write([Default=Undefined] optional DOMString text);
-    [Custom, PerWorldBindings, ActivityLogging=ForIsolatedWorlds, CustomElementCallbacks] void writeln([Default=Undefined] optional DOMString text);
+
+    // We support multiple DOMString arguments to match FF / IE, e.g.:
+    // document.write("a", "b", "c") --> document.write("abc")
+    // document.write() --> document.write("")
+    [CallWith=ActiveWindow, PerWorldBindings, ActivityLogging=ForIsolatedWorlds, CustomElementCallbacks] void write(DOMString... text);
+    [CallWith=ActiveWindow, PerWorldBindings, ActivityLogging=ForIsolatedWorlds, CustomElementCallbacks] void writeln(DOMString... text);
 
     readonly attribute HTMLCollection embeds;
     readonly attribute HTMLCollection plugins;
     readonly attribute HTMLCollection scripts;
 
     // Extensions
 
     [Replaceable, ImplementedAs=allForBinding] readonly attribute HTMLAllCollection all;
 
     [DeprecateAs=DocumentClear] void clear();
 
     [DeprecateAs=CaptureEvents] void captureEvents();
     [DeprecateAs=ReleaseEvents] void releaseEvents();
 
     [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString dir;
     [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString designMode;
     readonly attribute DOMString compatMode;
 
     readonly attribute Element activeElement;
     boolean hasFocus();
 
     // Deprecated attributes
     [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString bgColor;
     [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString fgColor;
     [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString alinkColor;
     [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString linkColor;
     [TreatNullAs=NullString, CustomElementCallbacks] attribute DOMString vlinkColor;
 };