chrome/browser/chromeos/system/statistics_provider.h

   1 // Copyright (c) 2011 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_CHROMEOS_SYSTEM_STATISTICS_PROVIDER_H_
   6 #define CHROME_BROWSER_CHROMEOS_SYSTEM_STATISTICS_PROVIDER_H_
   7
   8 #include <string>
   9
  10 namespace chromeos {
  11 namespace system {
  12
  13 // This interface provides access to Chrome OS statistics.
  14 class StatisticsProvider {
  15  public:
  16   // Initializes the statistics provider.
  17   virtual void Init() = 0;
  18
  19   // Starts loading the machine statistcs.
  20   virtual void StartLoadingMachineStatistics() = 0;
  21
  22   // Retrieve the named machine statistic (e.g. "hardware_class").
  23   // This does not update the statistcs. If the |name| is not set, |result|
  24   // preserves old value.
  25   virtual bool GetMachineStatistic(const std::string& name,
  26                                    std::string* result) = 0;
  27
  28   // Retrieve boolean value for named machine flag.
  29   virtual bool GetMachineFlag(const std::string& name,
  30                               bool* result) = 0;
  31
  32   // Loads kiosk oem manifest file.
  33   virtual void LoadOemManifest() = 0;
  34
  35   static StatisticsProvider* GetInstance();
  36
  37  protected:
  38   virtual ~StatisticsProvider() {}
  39 };
  40
  41 }  // namespace system
  42 }  // namespace chromeos
  43
  44 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_STATISTICS_PROVIDER_H_