Bindings generator should support Web IDL callback interfaces

Source/bindings/scripts/CodeGeneratorV8.pm

 # Copyright (C) 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
 # Copyright (C) 2006 Anders Carlsson <andersca@mac.com>
 # Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
 # Copyright (C) 2006 Alexey Proskuryakov <ap@webkit.org>
 # Copyright (C) 2006 Apple Computer, Inc.
 # Copyright (C) 2007, 2008, 2009, 2012 Google Inc.
 # Copyright (C) 2009 Cameron McCormack <cam@mcc.id.au>
 # Copyright (C) Research In Motion Limited 2010. All rights reserved.
 # Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
 # Copyright (C) 2012 Ericsson AB. All rights reserved.
@@ skipping 62 matching lines @@
     bless($reference, $object);
     return $reference;
 }
 
 sub GenerateInterface
 {
     my $object = shift;
     my $interface = shift;
 
     # Start actual generation
-    if ($interface->extendedAttributes->{"Callback"}) {
+    if ($interface->isCallback) {
         $object->GenerateCallbackHeader($interface);
         $object->GenerateCallbackImplementation($interface);
     } else {
         $object->GenerateHeader($interface);
         $object->GenerateImplementation($interface);
     }
 }
 
 sub AddToImplIncludes
 {
@@ skipping 4788 matching lines @@
 
 sub GetPassRefPtrType
 {
     my $v8InterfaceName = shift;
 
     my $angleBracketSpace = $v8InterfaceName =~ />$/ ? " " : "";
     return "PassRefPtr<${v8InterfaceName}${angleBracketSpace}>";
 }
 
 1;