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- // 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 <set>
- #include <string>
- #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<std::string>& switches,
- const std::set<std::string>& 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_
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