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// Copyright 2015 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.
#include "third_party/blink/renderer/core/timing/dom_window_performance.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
namespace blink {
DOMWindowPerformance::DOMWindowPerformance(LocalDOMWindow& window)
: Supplement<LocalDOMWindow>(window) {}
void DOMWindowPerformance::Trace(Visitor* visitor) {
visitor->Trace(performance_);
Supplement<LocalDOMWindow>::Trace(visitor);
}
// static
const char DOMWindowPerformance::kSupplementName[] = "DOMWindowPerformance";
// static
DOMWindowPerformance& DOMWindowPerformance::From(LocalDOMWindow& window) {
DOMWindowPerformance* supplement =
Supplement<LocalDOMWindow>::From<DOMWindowPerformance>(window);
if (!supplement) {
supplement = MakeGarbageCollected<DOMWindowPerformance>(window);
ProvideTo(window, supplement);
}
return *supplement;
}
// static
WindowPerformance* DOMWindowPerformance::performance(LocalDOMWindow& window) {
return From(window).performance();
}
WindowPerformance* DOMWindowPerformance::performance() {
if (!performance_)
performance_ = MakeGarbageCollected<WindowPerformance>(GetSupplementable());
return performance_.Get();
}
} // namespace blink
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