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

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

Index: third_party/WebKit/Source/core/events/EventListenerMap.cpp
diff --git a/third_party/WebKit/Source/core/events/EventListenerMap.cpp b/third_party/WebKit/Source/core/events/EventListenerMap.cpp
index ef3d5b303e7758f5fd955f9a1587a890bfedb65a..56d5219d1ed6436fc1092c5ec60b6fa56fd09df4 100644
--- a/third_party/WebKit/Source/core/events/EventListenerMap.cpp
+++ b/third_party/WebKit/Source/core/events/EventListenerMap.cpp
@@ -179,25 +179,6 @@ EventListenerVector* EventListenerMap::find(const AtomicString& eventType)
     return nullptr;
 }
 
-static void copyListenersNotCreatedFromMarkupToTarget(const AtomicString& eventType, EventListenerVector* listenerVector, EventTarget* target)
-{
-    for (auto& eventListener : *listenerVector) {
-        // Event listeners created from markup have already been transfered to the shadow tree during cloning.
-        if (eventListener.listener()->wasCreatedFromMarkup())
-            continue;
-        AddEventListenerOptionsResolved options = eventListener.options();
-        target->addEventListener(eventType, eventListener.listener(), options);
-    }
-}
-
-void EventListenerMap::copyEventListenersNotCreatedFromMarkupToTarget(EventTarget* target)
-{
-    assertNoActiveIterators();
-
-    for (const auto& eventListener : m_entries)
-        copyListenersNotCreatedFromMarkupToTarget(eventListener.first, eventListener.second.get(), target);
-}
-
 DEFINE_TRACE(EventListenerMap)
 {
     visitor->trace(m_entries);