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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_OPTIMIZATION_GUIDE_OPTIMIZATION_GUIDE_FEATURES_H_
#define COMPONENTS_OPTIMIZATION_GUIDE_OPTIMIZATION_GUIDE_FEATURES_H_
#include <string>
#include <utility>
#include "base/feature_list.h"
#include "base/time/time.h"
#include "url/gurl.h"
namespace optimization_guide {
namespace features {
extern const base::Feature kOptimizationHints;
extern const base::Feature kOptimizationHintsExperiments;
constexpr char kOptimizationHintsExperimentNameParam[] = "experiment_name";
extern const base::Feature kSlowPageTriggering;
extern const base::Feature kOptimizationHintsFetching;
// The maximum number of hosts that can be stored in the
// |kHintsFetcherTopHostBlacklist| dictionary pref when initialized. The top
// hosts will also be returned in order of most engaged. This prevents the most
// engaged hosts in a user's history before DataSaver being enabled from being
// requested until the user navigates to the host again.
size_t MaxHintsFetcherTopHostBlacklistSize();
// The maximum number of hosts allowed to be requested by the client to the
// remote Optimzation Guide Service.
size_t MaxHostsForOptimizationGuideServiceHintsFetch();
// The amount of time a fetched hint will be considered fresh enough
// to be used and remain in the HintCacheStore.
base::TimeDelta StoredFetchedHintsFreshnessDuration();
// The API key for the One Platform Optimization Guide Service.
std::string GetOptimizationGuideServiceAPIKey();
// The host for the One Platform Optimization Guide Service.
GURL GetOptimizationGuideServiceURL();
// Whether server optimization hints are enabled.
bool IsOptimizationHintsEnabled();
// Returns true if the feature to fetch hints from the remote Optimization Guide
// Service is enabled.
bool IsHintsFetchingEnabled();
} // namespace features
} // namespace optimization_guide
#endif // COMPONENTS_OPTIMIZATION_GUIDE_OPTIMIZATION_GUIDE_FEATURES_H_
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