| // Copyright 2018 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_METRICS_EXPIRED_HISTOGRAM_UTIL_H_ |
| #define COMPONENTS_METRICS_EXPIRED_HISTOGRAM_UTIL_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "base/containers/span.h" |
| |
| namespace metrics { |
| |
| // Enables histogram expiry checker if it is enabled by field trial. Histogram |
| // expiry is disbaled by default so that unit tests don't fail unexpectedly when |
| // a histogram expires. |
| void EnableExpiryChecker(base::span<const uint32_t> expired_histograms_hashes); |
| |
| } // namespace metrics |
| |
| #endif // COMPONENTS_METRICS_EXPIRED_HISTOGRAM_UTIL_H_ |
