text: /*
   * Copyright (C) 2016, Canon 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
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Canon Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #pragma once
  
  #include "CachedRawResourceClient.h"
  #include "CachedResourceHandle.h"
  #include "ResourceRequest.h"
  
  namespace WebCore {
  
  class CachedRawResource;
  class Document;
  class DocumentThreadableLoader;
  class ResourceError;
  
  class CrossOriginPreflightChecker final : private CachedRawResourceClient {
  public:
      static void doPreflight(DocumentThreadableLoader&, ResourceRequest&&);
  
      CrossOriginPreflightChecker(DocumentThreadableLoader&, ResourceRequest&&);
      ~CrossOriginPreflightChecker();
  
      void startPreflight();
  
      void setDefersLoading(bool);
  
  private:
      void notifyFinished(CachedResource&) final;
      void redirectReceived(CachedResource&, ResourceRequest&&, const ResourceResponse&, CompletionHandler<void(ResourceRequest&&)>&&) final;
  
      static void handleLoadingFailure(DocumentThreadableLoader&, unsigned long, const ResourceError&);
      static void validatePreflightResponse(DocumentThreadableLoader&, ResourceRequest&&, unsigned long, const ResourceResponse&);
  
      DocumentThreadableLoader& m_loader;
      CachedResourceHandle<CachedRawResource> m_resource;
      ResourceRequest m_request;
  };
  
  } // namespace WebCore
  