68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
|
// Copyright 2017 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_FIELD_TRIALS_PROVIDER_H_
|
||
|
|
#define COMPONENTS_METRICS_FIELD_TRIALS_PROVIDER_H_
|
||
|
|
|
||
|
|
#include "base/memory/raw_ptr.h"
|
||
|
|
#include "base/strings/string_piece.h"
|
||
|
|
#include "base/time/time.h"
|
||
|
|
#include "components/metrics/metrics_provider.h"
|
||
|
|
#include "third_party/metrics_proto/chrome_user_metrics_extension.pb.h"
|
||
|
|
|
||
|
|
// TODO(crbug/507665): Once MetricsProvider/SystemProfileProto are moved into
|
||
|
|
// //services/metrics, then //components/variations can depend on them, and
|
||
|
|
// this should be moved there.
|
||
|
|
namespace variations {
|
||
|
|
|
||
|
|
class SyntheticTrialRegistry;
|
||
|
|
struct ActiveGroupId;
|
||
|
|
|
||
|
|
class FieldTrialsProvider : public metrics::MetricsProvider {
|
||
|
|
public:
|
||
|
|
// |registry| must outlive this metrics provider.
|
||
|
|
FieldTrialsProvider(SyntheticTrialRegistry* registry,
|
||
|
|
base::StringPiece suffix);
|
||
|
|
|
||
|
|
FieldTrialsProvider(const FieldTrialsProvider&) = delete;
|
||
|
|
FieldTrialsProvider& operator=(const FieldTrialsProvider&) = delete;
|
||
|
|
|
||
|
|
~FieldTrialsProvider() override;
|
||
|
|
|
||
|
|
// metrics::MetricsProvider:
|
||
|
|
void ProvideSystemProfileMetrics(
|
||
|
|
metrics::SystemProfileProto* system_profile_proto) override;
|
||
|
|
void ProvideSystemProfileMetricsWithLogCreationTime(
|
||
|
|
base::TimeTicks log_creation_time,
|
||
|
|
metrics::SystemProfileProto* system_profile_proto) override;
|
||
|
|
void ProvideCurrentSessionData(
|
||
|
|
metrics::ChromeUserMetricsExtension* uma_proto) override;
|
||
|
|
|
||
|
|
// Sets |log_creation_time_| to |time|.
|
||
|
|
void SetLogCreationTimeForTesting(base::TimeTicks time);
|
||
|
|
|
||
|
|
private:
|
||
|
|
// Populates |field_trial_ids| with currently active field trials groups. The
|
||
|
|
// trial and group names are suffixed with |suffix_| before being hashed.
|
||
|
|
void GetFieldTrialIds(std::vector<ActiveGroupId>* field_trial_ids) const;
|
||
|
|
|
||
|
|
// Gets active FieldTrials and SyntheticFieldTrials and populates
|
||
|
|
// |system_profile_proto| with them.
|
||
|
|
void GetAndWriteFieldTrials(
|
||
|
|
metrics::SystemProfileProto* system_profile_proto) const;
|
||
|
|
|
||
|
|
// The most recent time passed to
|
||
|
|
// ProvideSystemProfileMetricsWithLogCreationTime().
|
||
|
|
base::TimeTicks log_creation_time_;
|
||
|
|
|
||
|
|
raw_ptr<SyntheticTrialRegistry> registry_;
|
||
|
|
|
||
|
|
// Suffix used for the field trial names before they are hashed for uploads.
|
||
|
|
std::string suffix_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace variations
|
||
|
|
|
||
|
|
#endif // COMPONENTS_METRICS_FIELD_TRIALS_PROVIDER_H_
|