Turn StyleSharing to 11.

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 313 matching lines @@
     // Although the Document may be replaced synchronously, DocumentParsers
     // generally keep at least one reference to an Element which would in turn
     // has a reference to the Document.  If you hit this ASSERT, then that
     // assumption is wrong.  DocumentParser::detach() should ensure that even
     // if the DocumentParser outlives the Document it won't cause badness.
     ASSERT(!m_parser || m_parser->refCount() == 1);
     detachParser();
 #endif
 
 #if !ENABLE(OILPAN)
-    if (m_styleSheetList)
-        m_styleSheetList->detachFromDocument();
 
     if (m_importsController)
         HTMLImportsController::removeFrom(*this);
 
     m_timeline->detachFromDocument();
 
     // We need to destroy CSSFontSelector before destroying m_fetcher.
     if (m_styleEngine)
         m_styleEngine->detachFromDocument();
 
@@ skipping 1324 matching lines @@
     if (deep)
         cloneChildNodes(clone.get());
     return clone.release();
 }
 
 PassRefPtr<Document> Document::cloneDocumentWithoutChildren()
 {
     return create(DocumentInit(url()).withRegistrationContext(registrationContext()));
 }
 
-StyleSheetList* Document::styleSheets()
-{
-    if (!m_styleSheetList)
-        m_styleSheetList = StyleSheetList::create(this);
-    return m_styleSheetList.get();
-}
-
 void Document::evaluateMediaQueryListIfNeeded()
 {
     if (!m_evaluateMediaQueriesOnStyleRecalc)
         return;
     evaluateMediaQueryList();
     m_evaluateMediaQueriesOnStyleRecalc = false;
 }
 
 void Document::evaluateMediaQueryList()
 {
@@ skipping 1092 matching lines @@
 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