// 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 CHROME_BROWSER_UI_WEBUI_TAB_STRIP_TAB_STRIP_UI_METRICS_H_ #define CHROME_BROWSER_UI_WEBUI_TAB_STRIP_TAB_STRIP_UI_METRICS_H_ namespace base { class TimeDelta; } // namespace base enum class TabStripUIOpenAction { … }; enum class TabStripUICloseAction { … }; void RecordTabStripUIOpenHistogram(TabStripUIOpenAction action); void RecordTabStripUICloseHistogram(TabStripUICloseAction action); void RecordTabStripUIOpenDurationHistogram(base::TimeDelta duration); #endif // CHROME_BROWSER_UI_WEBUI_TAB_STRIP_TAB_STRIP_UI_METRICS_H_