Use C++11 range-based loop for core/css

Source/core/css/MediaQueryMatcher.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 104 matching lines @@
         return;
     m_viewportListeners.remove(listener);
 }
 
 void MediaQueryMatcher::mediaFeaturesChanged()
 {
     if (!m_document)
         return;
 
     WillBeHeapVector<RefPtrWillBeMember<MediaQueryListListener> > listenersToNotify;
-    for (MediaQueryListSet::iterator it = m_mediaLists.begin(); it != m_mediaLists.end(); ++it) {
-        if ((*it)->mediaFeaturesChanged(&listenersToNotify)) {
-            RefPtrWillBeRawPtr<Event> event(MediaQueryListEvent::create(*it));
-            event->setTarget(*it);
+    for (const auto& list : m_mediaLists) {
+        if (list->mediaFeaturesChanged(&listenersToNotify)) {
+            RefPtrWillBeRawPtr<Event> event(MediaQueryListEvent::create(list));
+            event->setTarget(list);
             m_document->enqueueUniqueAnimationFrameEvent(event);
         }
     }
     m_document->enqueueMediaQueryChangeListeners(listenersToNotify);
 }
 
 void MediaQueryMatcher::viewportChanged()
 {
     if (!m_document)
         return;
 
     WillBeHeapVector<RefPtrWillBeMember<MediaQueryListListener> > listenersToNotify;
-    for (ViewportListenerSet::iterator it = m_viewportListeners.begin(); it != m_viewportListeners.end(); ++it)
-        listenersToNotify.append(*it);
+    for (const auto& listener : m_viewportListeners)
+        listenersToNotify.append(listener);
 
     m_document->enqueueMediaQueryChangeListeners(listenersToNotify);
 }
 
 void MediaQueryMatcher::trace(Visitor* visitor)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_document);
     visitor->trace(m_mediaLists);
     visitor->trace(m_viewportListeners);
 #endif
 }
 
 }