chrome/browser/preloading/preloading_utils.h

// Copyright 2026 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_PRELOADING_UTILS_H_
#define CHROME_BROWSER_PRELOADING_PRELOADING_UTILS_H_

#include <string>

class GURL;

namespace content {
class BrowserContext;
}  // namespace content

// This file is used to manage some static functions and constants for
// preloading. Some typical cases can be:
// * Indicates whether a preloading-related feature is enabled.
// * Stores the constants to avoid hardcoded strings.
namespace preloading_utils {

// LINT.IfChange(PreloadingEmbedderTriggerType)
extern const char kBookmarkBarMetricSuffix[];
extern const char kNewTabPageMetricSuffix[];
// LINT.ThenChange(//tools/metrics/histograms/metadata/navigation/histograms.xml:PagePreloadingTriggerType,
// //tools/metrics/histograms/metadata/page/histograms.xml:PagePreloadingTriggerType,
// //tools/metrics/histograms/metadata/prefetch/histograms.xml:TriggerTypeAndEagerness)

bool ShouldAllowPrefetchRedirection(
    content::BrowserContext& browser_context,
    const GURL& url,
    const std::string& embedder_histogram_suffix);

}  // namespace preloading_utils

#endif  // CHROME_BROWSER_PRELOADING_PRELOADING_UTILS_H_