Move toEventTarget to EventTarget

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 719 matching lines @@
 }
 
 DispatchEventResult EventTarget::dispatchEventResult(const Event& event) {
   if (event.defaultPrevented())
     return DispatchEventResult::CanceledByEventHandler;
   if (event.defaultHandled())
     return DispatchEventResult::CanceledByDefaultEventHandler;
   return DispatchEventResult::NotCanceled;
 }
 
+// static
+EventTarget* EventTarget::toEventTarget(v8::Local<v8::Object> object) {
+  const WrapperTypeInfo* wrapperTypeInfo = toWrapperTypeInfo(object);
+  if (wrapperTypeInfo->eventTargetInheritance ==
+      WrapperTypeInfo::NotInheritFromEventTarget)
+    return nullptr;
+  return static_cast<EventTarget*>(toScriptWrappable(object));
+}
+
 EventListenerVector* EventTarget::getEventListeners(
     const AtomicString& eventType) {
   EventTargetData* data = eventTargetData();
   if (!data)
     return nullptr;
   return data->eventListenerMap.find(eventType);
 }
 
 Vector<AtomicString> EventTarget::eventTypes() {
   EventTargetData* d = eventTargetData();
@@ skipping 10 matching lines @@
   // they have one less listener to invoke.
   if (d->firingEventIterators) {
     for (const auto& iterator : *d->firingEventIterators) {
       iterator.iterator = 0;
       iterator.end = 0;
     }
   }
 }
 
 }  // namespace blink