Remove various Heap* types.

sky/engine/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 253 matching lines @@
     registerObserver(document);
 }
 
 DocumentVisibilityObserver::~DocumentVisibilityObserver()
 {
 #if !ENABLE(OILPAN)
     unregisterObserver();
 #endif
 }
 
-void DocumentVisibilityObserver::trace(Visitor* visitor)
-{
-    visitor->trace(m_document);
-}
-
 void DocumentVisibilityObserver::unregisterObserver()
 {
     if (m_document) {
         m_document->unregisterVisibilityObserver(this);
         m_document = nullptr;
     }
 }
 
 void DocumentVisibilityObserver::registerObserver(Document& document)
 {
@@ skipping 2881 matching lines @@
     wrapperType->installConditionallyEnabledProperties(wrapper, isolate);
     V8DOMWrapper::associateObjectWithWrapperNonTemplate(this, wrapperType, wrapper, isolate);
 
     DOMWrapperWorld& world = DOMWrapperWorld::current(isolate);
     if (world.isMainWorld() && frame())
         frame()->script().windowProxy(world)->updateDocumentWrapper(wrapper);
 
     return wrapper;
 }
 
-void Document::trace(Visitor* visitor)
-{
-#if ENABLE(OILPAN)
-    visitor->trace(m_importsController);
-    visitor->trace(m_implementation);
-    visitor->trace(m_autofocusElement);
-    visitor->trace(m_focusedElement);
-    visitor->trace(m_hoverNode);
-    visitor->trace(m_activeHoverElement);
-    visitor->trace(m_documentElement);
-    visitor->trace(m_titleElement);
-    visitor->trace(m_markers);
-    visitor->trace(m_currentScriptStack);
-    visitor->trace(m_cssCanvasElements);
-    visitor->trace(m_elemSheet);
-    visitor->trace(m_ranges);
-    visitor->trace(m_styleEngine);
-    visitor->trace(m_domWindow);
-    visitor->trace(m_fetcher);
-    visitor->trace(m_parser);
-    visitor->trace(m_styleSheetList);
-    visitor->trace(m_mediaQueryMatcher);
-    visitor->trace(m_scriptedAnimationController);
-    visitor->trace(m_registrationContext);
-    visitor->trace(m_customElementMicrotaskRunQueue);
-    visitor->trace(m_elementDataCache);
-    visitor->trace(m_templateDocument);
-    visitor->trace(m_templateDocumentHost);
-    visitor->trace(m_visibilityObservers);
-    visitor->trace(m_userActionElements);
-    visitor->trace(m_timeline);
-    visitor->trace(m_compositorPendingAnimations);
-    visitor->trace(m_contextDocument);
-    visitor->registerWeakMembers<Document, &Document::clearWeakMembers>(this);
-#endif
-    DocumentSupplementable::trace(visitor);
-    TreeScope::trace(visitor);
-    ContainerNode::trace(visitor);
-    ExecutionContext::trace(visitor);
-    LifecycleContext<Document>::trace(visitor);
-}
-
 } // namespace blink
 
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (WeakDocumentSet::const_iterator it = set.begin(); it != set.end(); ++it) {
         fprintf(stderr, "- Document %p URL: %s\n", *it, (*it)->url().string().utf8().data());
     }
 }
 #endif