1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_METRICS_CHROMEOS_METRICS_PROVIDER_H_
6#define CHROME_BROWSER_METRICS_CHROMEOS_METRICS_PROVIDER_H_
7
8#include "base/memory/weak_ptr.h"
9#include "chrome/browser/metrics/perf_provider_chromeos.h"
10#include "components/metrics/metrics_provider.h"
11
12namespace device {
13class BluetoothAdapter;
14}
15
16namespace metrics {
17class ChromeUserMetricsExtension;
18}
19
20class PrefRegistrySimple;
21class PrefService;
22
23// Performs ChromeOS specific metrics logging.
24class ChromeOSMetricsProvider : public metrics::MetricsProvider {
25 public:
26  ChromeOSMetricsProvider();
27  virtual ~ChromeOSMetricsProvider();
28
29  static void RegisterPrefs(PrefRegistrySimple* registry);
30
31  // Records a crash.
32  static void LogCrash(const std::string& crash_type);
33
34  // Loads hardware class information. When this task is complete, |callback|
35  // is run.
36  void InitTaskGetHardwareClass(const base::Closure& callback);
37
38  // metrics::MetricsProvider:
39  virtual void OnDidCreateMetricsLog() OVERRIDE;
40  virtual void ProvideSystemProfileMetrics(
41      metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
42  virtual void ProvideStabilityMetrics(
43      metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
44  virtual void ProvideGeneralMetrics(
45      metrics::ChromeUserMetricsExtension* uma_proto) OVERRIDE;
46
47 private:
48  // Called on the FILE thread to load hardware class information.
49  void InitTaskGetHardwareClassOnFileThread();
50
51  // Update the number of users logged into a multi-profile session.
52  // If the number of users change while the log is open, the call invalidates
53  // the user count value.
54  void UpdateMultiProfileUserCount(
55      metrics::SystemProfileProto* system_profile_proto);
56
57  // Sets the Bluetooth Adapter instance used for the WriteBluetoothProto()
58  // call.
59  void SetBluetoothAdapter(scoped_refptr<device::BluetoothAdapter> adapter);
60
61  // Writes info about paired Bluetooth devices on this system.
62  void WriteBluetoothProto(metrics::SystemProfileProto* system_profile_proto);
63
64  metrics::PerfProvider perf_provider_;
65
66  // Bluetooth Adapter instance for collecting information about paired devices.
67  scoped_refptr<device::BluetoothAdapter> adapter_;
68
69  // Whether the user count was registered at the last log initialization.
70  bool registered_user_count_at_log_initialization_;
71
72  // The user count at the time that a log was last initialized. Contains a
73  // valid value only if |registered_user_count_at_log_initialization_| is
74  // true.
75  uint64 user_count_at_log_initialization_;
76
77  // Hardware class (e.g., hardware qualification ID). This class identifies
78  // the configured system components such as CPU, WiFi adapter, etc.
79  std::string hardware_class_;
80
81  base::WeakPtrFactory<ChromeOSMetricsProvider> weak_ptr_factory_;
82
83  DISALLOW_COPY_AND_ASSIGN(ChromeOSMetricsProvider);
84};
85
86#endif  // CHROME_BROWSER_METRICS_CHROMEOS_METRICS_PROVIDER_H_
87