Support slotchange events

third_party/WebKit/Source/core/events/Event.cpp

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * 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.
@@ skipping 26 matching lines @@
 static bool defaultScopedFromEventType(const AtomicString& eventType)
 {
     return (eventType == EventTypeNames::abort
         || eventType == EventTypeNames::change
         || eventType == EventTypeNames::error
         || eventType == EventTypeNames::load
         || eventType == EventTypeNames::reset
         || eventType == EventTypeNames::resize
         || eventType == EventTypeNames::scroll
         || eventType == EventTypeNames::select
-        || eventType == EventTypeNames::selectstart);
+        || eventType == EventTypeNames::selectstart
+        || eventType == EventTypeNames::slotchange);
 }
 
 Event::Event()
     : Event("", false, false, false)
 {
 }
 
 Event::Event(const AtomicString& eventType, bool canBubbleArg, bool cancelableArg)
     : Event(eventType, canBubbleArg, cancelableArg, defaultScopedFromEventType(eventType), monotonicallyIncreasingTime())
 {
@@ skipping 263 matching lines @@
 
 DEFINE_TRACE(Event)
 {
     visitor->trace(m_currentTarget);
     visitor->trace(m_target);
     visitor->trace(m_underlyingEvent);
     visitor->trace(m_eventPath);
 }
 
 } // namespace blink