chromium/chrome/browser/preloading/prefetch/search_prefetch/cache_alias_search_prefetch_url_loader.h

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_PRELOADING_PREFETCH_SEARCH_PREFETCH_CACHE_ALIAS_SEARCH_PREFETCH_URL_LOADER_H_
#define CHROME_BROWSER_PRELOADING_PREFETCH_SEARCH_PREFETCH_CACHE_ALIAS_SEARCH_PREFETCH_URL_LOADER_H_

#include <memory>
#include <optional>
#include <string>
#include <vector>

#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/timer/elapsed_timer.h"
#include "chrome/browser/preloading/prefetch/search_prefetch/search_prefetch_service.h"
#include "chrome/browser/preloading/prefetch/search_prefetch/search_prefetch_url_loader.h"
#include "chrome/browser/profiles/profile.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "services/network/public/mojom/url_response_head.mojom-forward.h"

// This class tries to fetch a prefetch response from the disk cache, and if one
// is not available, it fetches the non-prefetch URL directly (this is called as
// "fallback"). This case is only triggered when the disk cache doesn't need to
// be revalidated (i.e., back/forward).
class CacheAliasSearchPrefetchURLLoader
    : public network::mojom::URLLoader,
      public network::mojom::URLLoaderClient,
      public SearchPrefetchURLLoader { … };

#endif  // CHROME_BROWSER_PRELOADING_PREFETCH_SEARCH_PREFETCH_CACHE_ALIAS_SEARCH_PREFETCH_URL_LOADER_H_