Deprecate the overflowchanged event

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 3925 matching lines @@
     } else if (eventType == EventTypeNames::DOMNodeRemovedFromDocument) {
         UseCounter::count(*this, UseCounter::DOMNodeRemovedFromDocumentEvent);
         addMutationEventListenerTypeIfEnabled(DOMNODEREMOVEDFROMDOCUMENT_LISTENER);
     } else if (eventType == EventTypeNames::DOMNodeInsertedIntoDocument) {
         UseCounter::count(*this, UseCounter::DOMNodeInsertedIntoDocumentEvent);
         addMutationEventListenerTypeIfEnabled(DOMNODEINSERTEDINTODOCUMENT_LISTENER);
     } else if (eventType == EventTypeNames::DOMCharacterDataModified) {
         UseCounter::count(*this, UseCounter::DOMCharacterDataModifiedEvent);
         addMutationEventListenerTypeIfEnabled(DOMCHARACTERDATAMODIFIED_LISTENER);
     } else if (eventType == EventTypeNames::overflowchanged) {
-        UseCounter::count(*this, UseCounter::OverflowChangedEvent);
+        UseCounter::countDeprecation(*this, UseCounter::OverflowChangedEvent);
         addListenerType(OVERFLOWCHANGED_LISTENER);
     } else if (eventType == EventTypeNames::webkitAnimationStart || (RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled() && eventType == EventTypeNames::animationstart)) {
         addListenerType(ANIMATIONSTART_LISTENER);
     } else if (eventType == EventTypeNames::webkitAnimationEnd || (RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled() && eventType == EventTypeNames::animationend)) {
         addListenerType(ANIMATIONEND_LISTENER);
     } else if (eventType == EventTypeNames::webkitAnimationIteration || (RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled() && eventType == EventTypeNames::animationiteration)) {
         addListenerType(ANIMATIONITERATION_LISTENER);
     } else if (eventType == EventTypeNames::webkitTransitionEnd || eventType == EventTypeNames::transitionend) {
         addListenerType(TRANSITIONEND_LISTENER);
     } else if (eventType == EventTypeNames::scroll) {
@@ skipping 1803 matching lines @@
     visitor->trace(m_timeline);
     visitor->trace(m_compositorPendingAnimations);
     visitor->registerWeakMembers<Document, &Document::clearWeakMembers>(this);
     DocumentSupplementable::trace(visitor);
     TreeScope::trace(visitor);
     ContainerNode::trace(visitor);
     ExecutionContext::trace(visitor);
 }
 
 } // namespace WebCore