Return reference from styleEngine() accessor.

Source/core/css/StyleSheetContents.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2012 Apple Inc. All rights reserved.
  *
  * 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,
@@ skipping 525 matching lines @@
 void StyleSheetContents::clientLoadStarted(CSSStyleSheet* sheet)
 {
     ASSERT(m_completedClients.contains(sheet));
     m_completedClients.remove(sheet);
     m_loadingClients.add(sheet);
 }
 
 void StyleSheetContents::removeSheetFromCache(Document* document)
 {
     ASSERT(document);
-    document->styleEngine()->removeSheet(this);
+    document->styleEngine().removeSheet(this);
 }
 
 void StyleSheetContents::addedToMemoryCache()
 {
     ASSERT(!m_isInMemoryCache);
     ASSERT(isCacheable());
     m_isInMemoryCache = true;
 }
 
 void StyleSheetContents::removedFromMemoryCache()
@@ skipping 15 matching lines @@
         m_ruleSet = RuleSet::create();
         m_ruleSet->addRulesFromSheet(this, medium, addRuleFlags);
     }
     return *m_ruleSet.get();
 }
 
 static void clearResolvers(WillBeHeapHashSet<RawPtrWillBeWeakMember<CSSStyleSheet> >& clients)
 {
     for (const auto& sheet : clients) {
         if (Document* document = sheet->ownerDocument())
-            document->styleEngine()->clearResolver();
+            document->styleEngine().clearResolver();
     }
 }
 
 void StyleSheetContents::clearRuleSet()
 {
     if (StyleSheetContents* parentSheet = parentStyleSheet())
         parentSheet->clearRuleSet();
 
     // Don't want to clear the StyleResolver if the RuleSet hasn't been created
     // since we only clear the StyleResolver so that it's members are properly
     // updated in ScopedStyleResolver::addRulesFromSheet.
     if (!m_ruleSet)
         return;
 
     // Clearing the ruleSet means we need to recreate the styleResolver data structures.
     // See the StyleResolver calls in ScopedStyleResolver::addRulesFromSheet.
     clearResolvers(m_loadingClients);
     clearResolvers(m_completedClients);
     m_ruleSet.clear();
 }
 
 static void removeFontFaceRules(WillBeHeapHashSet<RawPtrWillBeWeakMember<CSSStyleSheet> >& clients, const StyleRuleFontFace* fontFaceRule)
 {
     for (const auto& sheet : clients) {
         if (Node* ownerNode = sheet->ownerNode())
-            ownerNode->document().styleEngine()->removeFontFaceRules(WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> >(1, fontFaceRule));
+            ownerNode->document().styleEngine().removeFontFaceRules(WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace>>(1, fontFaceRule));
     }
 }
 
 void StyleSheetContents::notifyRemoveFontFaceRule(const StyleRuleFontFace* fontFaceRule)
 {
     StyleSheetContents* root = rootStyleSheet();
     removeFontFaceRules(root->m_loadingClients, fontFaceRule);
     removeFontFaceRules(root->m_completedClients, fontFaceRule);
 }
 
@@ skipping 30 matching lines @@
     visitor->trace(m_ownerRule);
     visitor->trace(m_importRules);
     visitor->trace(m_childRules);
     visitor->trace(m_loadingClients);
     visitor->trace(m_completedClients);
     visitor->trace(m_ruleSet);
 #endif
 }
 
 }