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// 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_FETCH_DETACHABLE_USE_COUNTER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_FETCH_DETACHABLE_USE_COUNTER_H_
#include "third_party/blink/renderer/platform/instrumentation/use_counter.h"
namespace blink {
class DetachableUseCounter final
: public GarbageCollected<DetachableUseCounter>,
public UseCounter {
public:
// |use_counter| can be null, and in that case |this| is already detached.
explicit DetachableUseCounter(UseCounter* use_counter)
: use_counter_(use_counter) {}
~DetachableUseCounter() override = default;
// UseCounter
void CountUse(mojom::WebFeature feature) override {
if (use_counter_) {
use_counter_->CountUse(feature);
}
}
void CountDeprecation(mojom::WebFeature feature) override {
if (use_counter_) {
use_counter_->CountDeprecation(feature);
}
}
void CountWebDXFeature(mojom::blink::WebDXFeature feature) override {
if (use_counter_) {
use_counter_->CountWebDXFeature(feature);
}
}
void Trace(Visitor* visitor) const override { visitor->Trace(use_counter_); }
void Detach() { use_counter_ = nullptr; }
private:
Member<UseCounter> use_counter_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_LOADER_FETCH_DETACHABLE_USE_COUNTER_H_
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