chromium/components/optimization_guide/core/hints_fetcher.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_OPTIMIZATION_GUIDE_CORE_HINTS_FETCHER_H_
#define COMPONENTS_OPTIMIZATION_GUIDE_CORE_HINTS_FETCHER_H_

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

#include "base/containers/flat_set.h"
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/scoped_refptr.h"
#include "base/sequence_checker.h"
#include "base/time/clock.h"
#include "base/time/time.h"
#include "components/optimization_guide/proto/hints.pb.h"
#include "url/gurl.h"

class OptimizationGuideLogger;
class PrefService;

namespace network {
class SharedURLLoaderFactory;
class SimpleURLLoader;
}  // namespace network

namespace optimization_guide {

// Callback to inform the caller that the remote hints have been fetched and
// to pass back the fetched hints response from the remote Optimization Guide
// Service.
HintsFetchedCallback;

// A class to handle requests for optimization hints from a remote Optimization
// Guide Service.
//
// This class fetches new hints from the remote Optimization Guide Service.
class HintsFetcher { … };

}  // namespace optimization_guide

#endif  // COMPONENTS_OPTIMIZATION_GUIDE_CORE_HINTS_FETCHER_H_