chromium/third_party/blink/public/common/page/content_to_visible_time_reporter.h

// 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_PUBLIC_COMMON_PAGE_CONTENT_TO_VISIBLE_TIME_REPORTER_H_
#define THIRD_PARTY_BLINK_PUBLIC_COMMON_PAGE_CONTENT_TO_VISIBLE_TIME_REPORTER_H_

#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "third_party/blink/public/common/common_export.h"
#include "third_party/blink/public/mojom/widget/record_content_to_visible_time_request.mojom.h"

namespace viz {
struct FrameTimingDetails;
}

namespace blink {

// Generates UMA metric to track the duration of tab switching from when the
// active tab is changed until the frame presentation time. The metric will be
// separated into two whether the tab switch has saved frames or not.
class BLINK_COMMON_EXPORT ContentToVisibleTimeReporter { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_PUBLIC_COMMON_PAGE_CONTENT_TO_VISIBLE_TIME_REPORTER_H_