blob: 454ed83840c17df6082a9ea2aaedfe55d002f70a [file] [log] [blame]
// Copyright 2014 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.
namespace base {
// UserMetricsAction exists purely to standardize on the parameters passed to
// UserMetrics. That way, our toolset can scan the source code reliable for
// constructors and extract the associated string constants.
// WARNING: When using UserMetricsAction you should use a string literal
// parameter e.g.
// RecordAction(UserMetricsAction("my action name"));
// This ensures that our processing scripts can associate this action's hash
// with its metric name. Therefore, it will be possible to retrieve the metric
// name from the hash later on.
// Please see tools/metrics/actions/ for details.
struct UserMetricsAction {
const char* str_;
explicit constexpr UserMetricsAction(const char* str) noexcept : str_(str) {}
} // namespace base