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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_PRELOADING_SPECULATION_RULES_SPECULATION_RULES_UTIL_H_
#define CONTENT_BROWSER_PRELOADING_SPECULATION_RULES_SPECULATION_RULES_UTIL_H_
#include "base/feature_list.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/mojom/speculation_rules/speculation_rules.mojom-shared.h"
namespace content {
// Distinguishes the given speculation eagerness should be treated as
// "immediate" eagerness. Note that This means that non-`kImmediate` eagerness
// may behaves as `kImmediate`.
inline constexpr bool IsImmediateSpeculationEagerness(
blink::mojom::SpeculationEagerness eagerness) {
switch (eagerness) {
// Currently, `kEager` behaves the same as `kImmediate`,
// but it will be changed in the near future as ongoing improvements on
// `kEager` trigger strategies.
// TODO(crbug.com/40287486): Update this according to the latest situation.
case blink::mojom::SpeculationEagerness::kImmediate:
return true;
case blink::mojom::SpeculationEagerness::kEager:
return !base::FeatureList::IsEnabled(
blink::features::kPreloadingEagerHeuristics);
case blink::mojom::SpeculationEagerness::kModerate:
case blink::mojom::SpeculationEagerness::kConservative:
return false;
}
}
} // namespace content
#endif // CONTENT_BROWSER_PRELOADING_SPECULATION_RULES_SPECULATION_RULES_UTIL_H_
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