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

Source/core/frame/DOMWindowLifecycleNotifier.cpp

 /*
  * Copyright (C) 2013 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 44 matching lines @@
 }
 
 PassOwnPtr<DOMWindowLifecycleNotifier> DOMWindowLifecycleNotifier::create(LocalDOMWindow* context)
 {
     return adoptPtr(new DOMWindowLifecycleNotifier(context));
 }
 
 void DOMWindowLifecycleNotifier::notifyAddEventListener(LocalDOMWindow* window, const AtomicString& eventType)
 {
     TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverDOMWindowObservers);
-    for (DOMWindowObserverSet::iterator it = m_windowObservers.begin(); it != m_windowObservers.end(); ++it)
-        (*it)->didAddEventListener(window, eventType);
+    for (const auto& windowObserver : m_windowObservers)
+        windowObserver->didAddEventListener(window, eventType);
 }
 
 void DOMWindowLifecycleNotifier::notifyRemoveEventListener(LocalDOMWindow* window, const AtomicString& eventType)
 {
     TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverDOMWindowObservers);
-    for (DOMWindowObserverSet::iterator it = m_windowObservers.begin(); it != m_windowObservers.end(); ++it)
-        (*it)->didRemoveEventListener(window, eventType);
+    for (const auto& windowObserver : m_windowObservers)
+        windowObserver->didRemoveEventListener(window, eventType);
 }
 
 void DOMWindowLifecycleNotifier::notifyRemoveAllEventListeners(LocalDOMWindow* window)
 {
     TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverDOMWindowObservers);
-    for (DOMWindowObserverSet::iterator it = m_windowObservers.begin(); it != m_windowObservers.end(); ++it)
-        (*it)->didRemoveAllEventListeners(window);
+    for (const auto& windowObserver : m_windowObservers)
+        windowObserver->didRemoveAllEventListeners(window);
 }
 
 } // namespace blink