chrome/browser/metrics/metrics_services_manager.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_SERVICES_MANAGER_H_
   6 #define CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/prefs/pref_change_registrar.h"
  11 #include "base/threading/thread_checker.h"
  12
  13 class ChromeMetricsServiceClient;
  14 class PrefService;
  15
  16 namespace base {
  17 class FilePath;
  18 }
  19
  20 namespace metrics {
  21 class MetricsService;
  22 class MetricsStateManager;
  23 }
  24
  25 namespace rappor {
  26 class RapporService;
  27 }
  28
  29 namespace chrome_variations {
  30 class VariationsService;
  31 }
  32
  33 // MetricsServicesManager is a helper class that has ownership over the various
  34 // metrics-related services in Chrome: MetricsService (via its client),
  35 // RapporService and VariationsService.
  36 class MetricsServicesManager {
  37  public:
  38   // Creates the MetricsServicesManager with the |local_state| prefs service.
  39   explicit MetricsServicesManager(PrefService* local_state);
  40   virtual ~MetricsServicesManager();
  41
  42   // Returns the MetricsService, creating it if it hasn't been created yet (and
  43   // additionally creating the ChromeMetricsServiceClient in that case).
  44   metrics::MetricsService* GetMetricsService();
  45
  46   // Returns the GetRapporService, creating it if it hasn't been created yet.
  47   rappor::RapporService* GetRapporService();
  48
  49   // Returns the VariationsService, creating it if it hasn't been created yet.
  50   chrome_variations::VariationsService* GetVariationsService();
  51
  52   // Should be called when a plugin loading error occurs.
  53   void OnPluginLoadingError(const base::FilePath& plugin_path);
  54
  55   // Update the managed services when permissions for recording/uploading
  56   // metrics change.
  57   void UpdatePermissions(bool may_record, bool may_upload);
  58
  59   // Update the managed services when permissions for uploading metrics change.
  60   void UpdateUploadPermissions(bool may_upload);
  61
  62  private:
  63   // Update the managed services when permissions for recording/uploading
  64   // metrics change.
  65   void UpdateRapporService();
  66
  67   // Returns the ChromeMetricsServiceClient, creating it if it hasn't been
  68   // created yet (and additionally creating the MetricsService in that case).
  69   ChromeMetricsServiceClient* GetChromeMetricsServiceClient();
  70
  71   metrics::MetricsStateManager* GetMetricsStateManager();
  72
  73   // Ensures that all functions are called from the same thread.
  74   base::ThreadChecker thread_checker_;
  75
  76   // Weak pointer to the local state prefs store.
  77   PrefService* local_state_;
  78
  79   // A change registrar for local_state_;
  80   PrefChangeRegistrar pref_change_registrar_;
  81
  82   // The current metrics reporting setting.
  83   bool may_upload_;
  84
  85   // The current metrics recording setting.
  86   bool may_record_;
  87
  88   // MetricsStateManager which is passed as a parameter to service constructors.
  89   scoped_ptr<metrics::MetricsStateManager> metrics_state_manager_;
  90
  91   // Chrome embedder implementation of the MetricsServiceClient. Owns the
  92   // MetricsService.
  93   scoped_ptr<ChromeMetricsServiceClient> metrics_service_client_;
  94
  95   // The RapporService, for RAPPOR metric uploads.
  96   scoped_ptr<rappor::RapporService> rappor_service_;
  97
  98   // The VariationsService, for server-side experiments infrastructure.
  99   scoped_ptr<chrome_variations::VariationsService> variations_service_;
 100
 101   DISALLOW_COPY_AND_ASSIGN(MetricsServicesManager);
 102 };
 103
 104 #endif  // CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_H_