(Re)organize handling of CORS access control during resource loading.

Source/core/html/HTMLImportChild.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 159 matching lines @@
     if (HTMLImportChild* found = root()->findLinkFor(m_url, this))
         shareLoader(found);
     else
         createLoader();
 }
 
 void HTMLImportChild::createLoader()
 {
     ASSERT(!isStateBlockedFromCreatingDocument());
     ASSERT(!m_loader);
-    m_loader = HTMLImportLoader::create(this, parent()->document()->fetcher());
+    m_loader = HTMLImportLoader::create(this);
     m_loader->addClient(this);
     m_loader->startLoading(resource());
 }
 
 void HTMLImportChild::shareLoader(HTMLImportChild* loader)
 {
     ASSERT(!m_loader);
     m_loader = loader->m_loader;
     m_loader->addClient(this);
     stateWillChange();
@@ skipping 41 matching lines @@
     HTMLImport::showThis();
     fprintf(stderr, " loader=%p own=%s async=%s url=%s",
         m_loader.get(),
         hasLoader() && ownsLoader() ? "Y" : "N",
         isCreatedByParser() ? "Y" : "N",
         url().string().utf8().data());
 }
 #endif
 
 } // namespace WebCore