Remove the concept of user stylesheets.

Source/core/dom/StyleEngine.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 52 matching lines @@
     , m_usesSiblingRulesOverride(false)
     , m_usesFirstLineRules(false)
     , m_usesFirstLetterRules(false)
     , m_usesRemUnits(false)
     , m_maxDirectAdjacentSelectors(0)
 {
 }
 
 StyleEngine::~StyleEngine()
 {
-    if (m_pageUserSheet)
-        m_pageUserSheet->clearOwnerNode();
     for (unsigned i = 0; i < m_injectedAuthorStyleSheets.size(); ++i)
         m_injectedAuthorStyleSheets[i]->clearOwnerNode();
-    for (unsigned i = 0; i < m_userStyleSheets.size(); ++i)
-        m_userStyleSheets[i]->clearOwnerNode();
     for (unsigned i = 0; i < m_authorStyleSheets.size(); ++i)
         m_authorStyleSheets[i]->clearOwnerNode();
 }
 
 void StyleEngine::insertTreeScopeInDocumentOrder(TreeScopeSet& treeScopes, TreeScope* treeScope)
 {
     if (treeScopes.isEmpty()) {
         treeScopes.add(treeScope);
         return;
     }
@@ skipping 74 matching lines @@
     m_maxDirectAdjacentSelectors = max(m_maxDirectAdjacentSelectors, features.maxDirectAdjacentSelectors());
 }
 
 void StyleEngine::resetCSSFeatureFlags(const RuleFeatureSet& features)
 {
     m_usesSiblingRules = features.usesSiblingRules();
     m_usesFirstLineRules = features.usesFirstLineRules();
     m_maxDirectAdjacentSelectors = features.maxDirectAdjacentSelectors();
 }
 
-CSSStyleSheet* StyleEngine::pageUserSheet()
-{
-    if (m_pageUserSheet)
-        return m_pageUserSheet.get();
-
-    Page* owningPage = m_document.page();
-    if (!owningPage)
-        return 0;
-
-    String userSheetText = owningPage->userStyleSheet();
-    if (userSheetText.isEmpty())
-        return 0;
-
-    // Parse the sheet and cache it.
-    m_pageUserSheet = CSSStyleSheet::createInline(&m_document, m_document.settings()->userStyleSheetLocation());
-    m_pageUserSheet->contents()->setIsUserStyleSheet(true);
-    m_pageUserSheet->contents()->parseString(userSheetText);
-    return m_pageUserSheet.get();
-}
-
-void StyleEngine::clearPageUserSheet()
-{
-    if (m_pageUserSheet) {
-        RefPtr<StyleSheet> removedSheet = m_pageUserSheet;
-        m_pageUserSheet = 0;
-        m_document.removedStyleSheet(removedSheet.get());
-    }
-}
-
-void StyleEngine::updatePageUserSheet()
-{
-    clearPageUserSheet();
-    // FIXME: Why is this immediately and not defer?
-    if (StyleSheet* addedSheet = pageUserSheet())
-        m_document.addedStyleSheet(addedSheet, RecalcStyleImmediately);
-}
-
 const Vector<RefPtr<CSSStyleSheet> >& StyleEngine::injectedAuthorStyleSheets() const
 {
     updateInjectedStyleSheetCache();
     return m_injectedAuthorStyleSheets;
 }
 
 void StyleEngine::updateInjectedStyleSheetCache() const
 {
     if (m_injectedStyleSheetCacheValid)
         return;
     m_injectedStyleSheetCacheValid = true;
     m_injectedAuthorStyleSheets.clear();
 
     Page* owningPage = m_document.page();
     if (!owningPage)
         return;
 
     const PageGroup& pageGroup = owningPage->group();
     const InjectedStyleSheetVector& sheets = pageGroup.injectedStyleSheets();
     for (unsigned i = 0; i < sheets.size(); ++i) {
         const InjectedStyleSheet* sheet = sheets[i].get();
         if (sheet->injectedFrames() == InjectStyleInTopFrameOnly && m_document.ownerElement())
             continue;
         if (!URLPatternMatcher::matchesPatterns(m_document.url(), sheet->whitelist()))
             continue;
         RefPtr<CSSStyleSheet> groupSheet = CSSStyleSheet::createInline(const_cast<Document*>(&m_document), KURL());
         m_injectedAuthorStyleSheets.append(groupSheet);
-        groupSheet->contents()->setIsUserStyleSheet(false);
         groupSheet->contents()->parseString(sheet->source());
     }
 }
 
 void StyleEngine::invalidateInjectedStyleSheetCache()
 {
     m_injectedStyleSheetCacheValid = false;
     m_needsDocumentStyleSheetsUpdate = true;
     // FIXME: updateInjectedStyleSheetCache is called inside StyleSheetCollection::updateActiveStyleSheets
     // and batch updates lots of sheets so we can't call addedStyleSheet() or removedStyleSheet().
     m_document.styleResolverChanged(RecalcStyleDeferred);
 }
 
 void StyleEngine::addAuthorSheet(PassRefPtr<StyleSheetContents> authorSheet)
 {
-    ASSERT(!authorSheet->isUserStyleSheet());
     m_authorStyleSheets.append(CSSStyleSheet::create(authorSheet, &m_document));
     m_document.addedStyleSheet(m_authorStyleSheets.last().get(), RecalcStyleImmediately);
     m_needsDocumentStyleSheetsUpdate = true;
 }
 
-void StyleEngine::addUserSheet(PassRefPtr<StyleSheetContents> userSheet)
-{
-    ASSERT(userSheet->isUserStyleSheet());
-    m_userStyleSheets.append(CSSStyleSheet::create(userSheet, &m_document));
-    m_document.addedStyleSheet(m_userStyleSheets.last().get(), RecalcStyleImmediately);
-    m_needsDocumentStyleSheetsUpdate = true;
-}
-
 // This method is called whenever a top-level stylesheet has finished loading.
 void StyleEngine::removePendingSheet(Node* styleSheetCandidateNode, RemovePendingSheetNotificationType notification)
 {
     // Make sure we knew this sheet was pending, and that our count isn't out of sync.
     ASSERT(m_pendingStylesheets > 0);
 
     m_pendingStylesheets--;
 
     TreeScope* treeScope = isHTMLStyleElement(styleSheetCandidateNode) ? &styleSheetCandidateNode->treeScope() : &m_document;
     if (treeScope == m_document)
@@ skipping 184 matching lines @@
         if (StyleSheetCollection* collection = m_styleSheetCollectionMap.get(*it)) {
             styleResolver->setBuildScopedStyleTreeInDocumentOrder(!collection->scopingNodesForStyleScoped());
             styleResolver->appendAuthorStyleSheets(0, collection->activeAuthorStyleSheets());
         }
     }
     styleResolver->finishAppendAuthorStyleSheets();
     styleResolver->setBuildScopedStyleTreeInDocumentOrder(false);
 }
 
 }