// Copyright 2020 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. #ifndef COMPONENTS_FLAGS_UI_FLAGS_UI_METRICS_H_ #define COMPONENTS_FLAGS_UI_FLAGS_UI_METRICS_H_ #include #include #include "base/metrics/histogram_base.h" namespace flags_ui { // Returns the UMA id for the specified switch name. base::HistogramBase::Sample GetSwitchUMAId(const std::string& switch_name); // Sends stats (as UMA histogram) about a set of command line |flags| in // a histogram, with an enum value for each flag in |switches| and |features|, // based on the hash of the flag name. void ReportAboutFlagsHistogram(const std::string& uma_histogram_name, const std::set& switches, const std::set& features); namespace testing { // This value is reported as switch histogram ID if switch name has unknown // format. extern const base::HistogramBase::Sample kBadSwitchFormatHistogramId; } // namespace testing } // namespace flags_ui #endif // COMPONENTS_FLAGS_UI_FLAGS_UI_METRICS_H_