Prepare to add more initiator info to CachedResource(Request)

Source/core/css/StyleRuleImport.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006, 2008, 2009, 2010, 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.
  *
@@ skipping 99 matching lines @@
     // Check for a cycle in our import chain.  If we encounter a stylesheet
     // in our parent chain with the same URL, then just bail.
     StyleSheetContents* rootSheet = m_parentStyleSheet;
     for (StyleSheetContents* sheet = m_parentStyleSheet; sheet; sheet = sheet->parentStyleSheet()) {
         if (equalIgnoringFragmentIdentifier(absURL, sheet->baseURL())
             || equalIgnoringFragmentIdentifier(absURL, document->completeURL(sheet->originalURL())))
             return;
         rootSheet = sheet;
     }
 
-    CachedResourceRequest request(ResourceRequest(absURL), m_parentStyleSheet->charset());
-    request.setInitiator(cachedResourceRequestInitiators().css);
+    CachedResourceRequest request(ResourceRequest(absURL), cachedResourceRequestInitiators().css, m_parentStyleSheet->charset());
     if (m_parentStyleSheet->isUserStyleSheet())
         m_cachedSheet = cachedResourceLoader->requestUserCSSStyleSheet(request);
     else
         m_cachedSheet = cachedResourceLoader->requestCSSStyleSheet(request);
     if (m_cachedSheet) {
         // if the import rule is issued dynamically, the sheet may be
         // removed from the pending sheet count, so let the doc know
         // the sheet being imported is pending.
         if (m_parentStyleSheet && m_parentStyleSheet->loadCompleted() && rootSheet == m_parentStyleSheet)
             m_parentStyleSheet->startLoadingDynamicSheet();
         m_loading = true;
         m_cachedSheet->addClient(&m_styleSheetClient);
     }
 }
 
 void StyleRuleImport::reportDescendantMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CSS);
     info.addMember(m_strHref, "strHref");
     info.addMember(m_mediaQueries, "mediaQueries");
     info.addMember(m_styleSheet, "styleSheet");
 }
 
 } // namespace WebCore