Return reference from styleEngine() accessor.

Source/core/dom/ProcessingInstruction.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2006, 2008, 2009 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 47 matching lines @@
 ProcessingInstruction::~ProcessingInstruction()
 {
 #if !ENABLE(OILPAN)
     if (m_sheet)
         clearSheet();
 
     // FIXME: ProcessingInstruction should not be in document here.
     // However, if we add ASSERT(!inDocument()), fast/xsl/xslt-entity.xml
     // crashes. We need to investigate ProcessingInstruction lifetime.
     if (inDocument() && m_isCSS)
-        document().styleEngine()->removeStyleSheetCandidateNode(this);
+        document().styleEngine().removeStyleSheetCandidateNode(this);
 #endif
     clearEventListenerForXSLT();
 }
 
 EventListener* ProcessingInstruction::eventListenerForXSLT()
 {
     if (!m_listenerForXSLT)
         return 0;
 
     return m_listenerForXSLT->toEventListener();
@@ skipping 93 matching lines @@
         if (RuntimeEnabledFeatures::xsltEnabled())
             resource = document().fetcher()->fetchXSLStyleSheet(request);
     } else {
         request.setCharset(charset.isEmpty() ? document().charset() : charset);
         resource = document().fetcher()->fetchCSSStyleSheet(request);
     }
 
     if (resource) {
         m_loading = true;
         if (!m_isXSL)
-            document().styleEngine()->addPendingSheet();
+            document().styleEngine().addPendingSheet();
         setResource(resource);
     }
 }
 
 bool ProcessingInstruction::isLoading() const
 {
     if (m_loading)
         return true;
     if (!m_sheet)
         return false;
     return m_sheet->isLoading();
 }
 
 bool ProcessingInstruction::sheetLoaded()
 {
     if (!isLoading()) {
         if (!DocumentXSLT::sheetLoaded(document(), this))
-            document().styleEngine()->removePendingSheet(this);
+            document().styleEngine().removePendingSheet(this);
         return true;
     }
     return false;
 }
 
 void ProcessingInstruction::setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CSSStyleSheetResource* sheet)
 {
     if (!inDocument()) {
         ASSERT(!m_sheet);
         return;
@@ skipping 59 matching lines @@
 Node::InsertionNotificationRequest ProcessingInstruction::insertedInto(ContainerNode* insertionPoint)
 {
     CharacterData::insertedInto(insertionPoint);
     if (!insertionPoint->inDocument())
         return InsertionDone;
 
     String href;
     String charset;
     bool isValid = checkStyleSheet(href, charset);
     if (!DocumentXSLT::processingInstructionInsertedIntoDocument(document(), this))
-        document().styleEngine()->addStyleSheetCandidateNode(this, m_createdByParser);
+        document().styleEngine().addStyleSheetCandidateNode(this, m_createdByParser);
     if (isValid)
         process(href, charset);
     return InsertionDone;
 }
 
 void ProcessingInstruction::removedFrom(ContainerNode* insertionPoint)
 {
     CharacterData::removedFrom(insertionPoint);
     if (!insertionPoint->inDocument())
         return;
 
     // No need to remove XSLStyleSheet from StyleEngine.
     if (!DocumentXSLT::processingInstructionRemovedFromDocument(document(), this))
-        document().styleEngine()->removeStyleSheetCandidateNode(this);
+        document().styleEngine().removeStyleSheetCandidateNode(this);
 
     RefPtrWillBeRawPtr<StyleSheet> removedSheet = m_sheet;
     if (m_sheet) {
         ASSERT(m_sheet->ownerNode() == this);
         clearSheet();
     }
 
     // No need to remove pending sheets.
     clearResource();
 
     // If we're in document teardown, then we don't need to do any notification of our sheet's removal.
     if (document().isActive())
         document().removedStyleSheet(removedSheet.get());
 }
 
 void ProcessingInstruction::clearSheet()
 {
     ASSERT(m_sheet);
     if (m_sheet->isLoading())
-        document().styleEngine()->removePendingSheet(this);
+        document().styleEngine().removePendingSheet(this);
     m_sheet.release()->clearOwnerNode();
 }
 
 DEFINE_TRACE(ProcessingInstruction)
 {
     visitor->trace(m_sheet);
     CharacterData::trace(visitor);
 }
 
 } // namespace