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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_DEPRECATION_DEPRECATION_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_DEPRECATION_DEPRECATION_H_
#include <bitset>
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/frame/web_feature.h"
#include "third_party/blink/renderer/platform/instrumentation/use_counter.h"
namespace blink {
namespace mojom {
enum class PermissionsPolicyFeature;
} // namespace mojom
class ExecutionContext;
class LocalDOMWindow;
class CORE_EXPORT Deprecation final {
DISALLOW_NEW();
public:
Deprecation();
Deprecation(const Deprecation&) = delete;
Deprecation& operator=(const Deprecation&) = delete;
void ClearSuppression();
void MuteForInspector();
void UnmuteForInspector();
// "countDeprecation" sets the bit for this feature to 1, and sends a
// deprecation warning to the console. Repeated calls are ignored.
//
// Be considerate to developers' consoles: features should only send
// deprecation warnings when we're actively interested in removing them from
// the platform.
static void CountDeprecation(ExecutionContext*, WebFeature);
// Count only features if they're being used in an iframe which does not
// have script access into the top level window.
static void CountDeprecationCrossOriginIframe(LocalDOMWindow*, WebFeature);
static bool IsDeprecated(WebFeature feature);
private:
void SetReported(WebFeature feature);
bool GetReported(WebFeature feature) const;
// To minimize the report/console spam from frames coming and going, report
// each deprecation at most once per page load per renderer process.
std::bitset<static_cast<size_t>(WebFeature::kMaxValue) + 1>
features_deprecation_bits_;
unsigned mute_count_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_DEPRECATION_DEPRECATION_H_
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