Loading: move core/fetch to platform/loader/fetch

third_party/WebKit/Source/core/fetch/ResourceLoader.h

-/*
- * Copyright (C) 2005, 2006, 2011 Apple 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:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  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.
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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.
- */
-
-#ifndef ResourceLoader_h
-#define ResourceLoader_h
-
-#include "core/CoreExport.h"
-#include "core/fetch/ResourceLoaderOptions.h"
-#include "platform/network/ResourceRequest.h"
-#include "public/platform/WebURLLoader.h"
-#include "public/platform/WebURLLoaderClient.h"
-#include "wtf/Forward.h"
-#include <memory>
-
-namespace blink {
-
-class FetchContext;
-class Resource;
-class ResourceError;
-class ResourceFetcher;
-
-// A ResourceLoader is created for each Resource by the ResourceFetcher when it
-// needs to load the specified resource. A ResourceLoader creates a
-// WebURLLoader and loads the resource using it. Any per-load logic should be
-// implemented in this class basically.
-class CORE_EXPORT ResourceLoader final
-    : public GarbageCollectedFinalized<ResourceLoader>,
-      protected WebURLLoaderClient {
-  USING_PRE_FINALIZER(ResourceLoader, dispose);
-
- public:
-  static ResourceLoader* create(ResourceFetcher*, Resource*);
-  ~ResourceLoader() override;
-  DECLARE_TRACE();
-
-  void start(const ResourceRequest&);
-
-  void cancel();
-
-  void setDefersLoading(bool);
-
-  void didChangePriority(ResourceLoadPriority, int intraPriorityValue);
-
-  // Called before start() to activate cache-aware loading if enabled in
-  // |m_resource->options()| and applicable.
-  void activateCacheAwareLoadingIfNeeded(const ResourceRequest&);
-
-  bool isCacheAwareLoadingActivated() const {
-    return m_isCacheAwareLoadingActivated;
-  }
-
-  // WebURLLoaderClient
-  //
-  // A succesful load will consist of:
-  // 0+  willFollowRedirect()
-  // 0+  didSendData()
-  // 1   didReceiveResponse()
-  // 0-1 didReceiveCachedMetadata()
-  // 0+  didReceiveData() or didDownloadData(), but never both
-  // 1   didFinishLoading()
-  // A failed load is indicated by 1 didFail(), which can occur at any time
-  // before didFinishLoading(), including synchronous inside one of the other
-  // callbacks via ResourceLoader::cancel()
-  bool willFollowRedirect(WebURLRequest&,
-                          const WebURLResponse& redirectResponse) override;
-  void didSendData(unsigned long long bytesSent,
-                   unsigned long long totalBytesToBeSent) override;
-  void didReceiveResponse(const WebURLResponse&) override;
-  void didReceiveResponse(const WebURLResponse&,
-                          std::unique_ptr<WebDataConsumerHandle>) override;
-  void didReceiveCachedMetadata(const char* data, int length) override;
-  void didReceiveData(const char*, int) override;
-  void didReceiveTransferSizeUpdate(int transferSizeDiff) override;
-  void didDownloadData(int, int) override;
-  void didFinishLoading(double finishTime,
-                        int64_t encodedDataLength,
-                        int64_t encodedBodyLength) override;
-  void didFail(const WebURLError&,
-               int64_t encodedDataLength,
-               int64_t encodedBodyLength) override;
-  void handleError(const ResourceError&);
-
-  void didFinishLoadingFirstPartInMultipart();
-
- private:
-  // Assumes ResourceFetcher and Resource are non-null.
-  ResourceLoader(ResourceFetcher*, Resource*);
-
-  // This method is currently only used for service worker fallback request and
-  // cache-aware loading, other users should be careful not to break
-  // ResourceLoader state.
-  void restart(const ResourceRequest&);
-
-  FetchContext& context() const;
-  ResourceRequestBlockedReason canAccessResponse(Resource*,
-                                                 const ResourceResponse&) const;
-
-  void cancelForRedirectAccessCheckError(const KURL&,
-                                         ResourceRequestBlockedReason);
-  void requestSynchronously(const ResourceRequest&);
-  void dispose();
-
-  std::unique_ptr<WebURLLoader> m_loader;
-  Member<ResourceFetcher> m_fetcher;
-  Member<Resource> m_resource;
-  bool m_isCacheAwareLoadingActivated;
-};
-
-}  // namespace blink
-
-#endif