Use C++11 range-based loop in core/events

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 135 matching lines @@
 {
     clearAttributeEventListener(eventType);
     if (!listener)
         return false;
     return addEventListener(eventType, listener, false);
 }
 
 EventListener* EventTarget::getAttributeEventListener(const AtomicString& eventType)
 {
     const EventListenerVector& entry = getEventListeners(eventType);
-    for (size_t i = 0; i < entry.size(); ++i) {
-        EventListener* listener = entry[i].listener.get();
+    for (const auto& eventListener : entry) {
+        EventListener* listener = eventListener.listener.get();
         if (listener->isAttribute() && listener->belongsToTheCurrentWorld())
             return listener;
     }
     return 0;
 }
 
 bool EventTarget::clearAttributeEventListener(const AtomicString& eventType)
 {
     EventListener* listener = getAttributeEventListener(eventType);
     if (!listener)
@@ skipping 219 matching lines @@
     // they have one less listener to invoke.
     if (d->firingEventIterators) {
         for (size_t i = 0; i < d->firingEventIterators->size(); ++i) {
             d->firingEventIterators->at(i).iterator = 0;
             d->firingEventIterators->at(i).end = 0;
         }
     }
 }
 
 } // namespace blink