// 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. #include "chrome/browser/ui/webui/tab_strip/tab_strip_ui_metrics.h" #include "base/metrics/histogram_macros.h" #include "base/time/time.h" void RecordTabStripUIOpenHistogram(TabStripUIOpenAction action) { … } void RecordTabStripUICloseHistogram(TabStripUICloseAction action) { … } void RecordTabStripUIOpenDurationHistogram(base::TimeDelta duration) { … }