chrome/browser/metrics/metrics_log_chromeos.h

   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_METRICS_LOG_CHROMEOS_H_
   6 #define CHROME_BROWSER_METRICS_METRICS_LOG_CHROMEOS_H_
   7
   8 #include "chrome/browser/metrics/perf_provider_chromeos.h"
   9
  10 namespace device {
  11 class BluetoothAdapter;
  12 }
  13
  14 namespace metrics {
  15 class ChromeUserMetricsExtension;
  16 }
  17
  18 class PrefService;
  19
  20 // Performs ChromeOS specific metrics logging.
  21 class MetricsLogChromeOS {
  22  public:
  23   explicit MetricsLogChromeOS(metrics::ChromeUserMetricsExtension* uma_proto);
  24   virtual ~MetricsLogChromeOS();
  25
  26   // Logs ChromeOS specific metrics which don't need to be updated immediately.
  27   void LogChromeOSMetrics();
  28
  29   // Within the stability group, write ChromeOS specific attributes that need to
  30   // be updated asap and can't be delayed until the user decides to restart
  31   // chromium.  Delaying these stats would bias metrics away from happy long
  32   // lived chromium processes (ones that don't crash, and keep on running).
  33   void WriteRealtimeStabilityAttributes(PrefService* pref);
  34
  35  private:
  36   // Update the number of users logged into a multi-profile session.
  37   // If the number of users change while the log is open, the call invalidates
  38   // the user count value.
  39   void UpdateMultiProfileUserCount();
  40
  41   // Sets the Bluetooth Adapter instance used for the WriteBluetoothProto()
  42   // call.
  43   void SetBluetoothAdapter(scoped_refptr<device::BluetoothAdapter> adapter);
  44
  45   // Writes info about paired Bluetooth devices on this system.
  46   virtual void WriteBluetoothProto();
  47
  48   metrics::PerfProvider perf_provider_;
  49
  50   // Bluetooth Adapter instance for collecting information about paired devices.
  51   scoped_refptr<device::BluetoothAdapter> adapter_;
  52   metrics::ChromeUserMetricsExtension* uma_proto_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(MetricsLogChromeOS);
  55 };
  56
  57 #endif  // CHROME_BROWSER_METRICS_METRICS_LOG_CHROMEOS_H_