Do not call an event listener on a cloned node in svg <use>'s UA shadow tree

third_party/WebKit/Source/core/events/EventListenerMap.h

 /*
  * 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, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2011 Andreas Kling (kling@webkit.org)
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 44 matching lines @@
     bool isEmpty() const { return m_entries.isEmpty(); }
     bool contains(const AtomicString& eventType) const;
     bool containsCapturing(const AtomicString& eventType) const;
 
     void clear();
     bool add(const AtomicString& eventType, EventListener*, const AddEventListenerOptionsResolved&, RegisteredEventListener* registeredListener);
     bool remove(const AtomicString& eventType, const EventListener*, const EventListenerOptions&, size_t* indexOfRemovedListener, RegisteredEventListener* registeredListener);
     EventListenerVector* find(const AtomicString& eventType);
     Vector<AtomicString> eventTypes() const;
 
-    void copyEventListenersNotCreatedFromMarkupToTarget(EventTarget*);
-
     DECLARE_TRACE();
 
 private:
     friend class EventListenerIterator;
 
     void assertNoActiveIterators();
 
     // We use HeapVector instead of HeapHashMap because
     //  - HeapVector is much more space efficient than HeapHashMap.
     //  - An EventTarget rarely has event listeners for many event types, and
@@ skipping 24 matching lines @@
     unsigned m_index;
 };
 
 #if !ENABLE(ASSERT)
 inline void EventListenerMap::assertNoActiveIterators() { }
 #endif
 
 } // namespace blink
 
 #endif // EventListenerMap_h