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// 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.
#ifndef CHROME_BROWSER_METRICS_CHROMEOS_METRICS_PROVIDER_H_
#define CHROME_BROWSER_METRICS_CHROMEOS_METRICS_PROVIDER_H_
#include "chrome/browser/metrics/perf_provider_chromeos.h"
#include "components/metrics/metrics_provider.h"
namespace device {
class BluetoothAdapter;
}
namespace metrics {
class ChromeUserMetricsExtension;
}
class PrefRegistrySimple;
class PrefService;
// Performs ChromeOS specific metrics logging.
class ChromeOSMetricsProvider : public metrics::MetricsProvider {
public:
ChromeOSMetricsProvider();
virtual ~ChromeOSMetricsProvider();
static void RegisterPrefs(PrefRegistrySimple* registry);
// Records a crash.
static void LogCrash(const std::string& crash_type);
// metrics::MetricsProvider:
virtual void OnDidCreateMetricsLog() OVERRIDE;
virtual void ProvideSystemProfileMetrics(
metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
virtual void ProvideStabilityMetrics(
metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
private:
// Update the number of users logged into a multi-profile session.
// If the number of users change while the log is open, the call invalidates
// the user count value.
void UpdateMultiProfileUserCount(
metrics::SystemProfileProto* system_profile_proto);
// Sets the Bluetooth Adapter instance used for the WriteBluetoothProto()
// call.
void SetBluetoothAdapter(scoped_refptr<device::BluetoothAdapter> adapter);
// Writes info about paired Bluetooth devices on this system.
void WriteBluetoothProto(metrics::SystemProfileProto* system_profile_proto);
metrics::PerfProvider perf_provider_;
// Bluetooth Adapter instance for collecting information about paired devices.
scoped_refptr<device::BluetoothAdapter> adapter_;
metrics::ChromeUserMetricsExtension* uma_proto_;
// Whether the user count was registered at the last log initialization.
bool registered_user_count_at_log_initialization_;
// The user count at the time that a log was last initialized. Contains a
// valid value only if |registered_user_count_at_log_initialization_| is
// true.
uint64 user_count_at_log_initialization_;
DISALLOW_COPY_AND_ASSIGN(ChromeOSMetricsProvider);
};
#endif // CHROME_BROWSER_METRICS_CHROMEOS_METRICS_PROVIDER_H_
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