Componentize MetricsServicesManager

chrome/browser/metrics/metrics_services_manager.h

-// 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_METRICS_SERVICES_MANAGER_H_
-#define CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/threading/thread_checker.h"
-
-class MetricsServicesManagerClient;
-
-namespace base {
-class FilePath;
-}
-
-namespace metrics {
-class MetricsService;
-class MetricsServiceClient;
-class MetricsStateManager;
-}
-
-namespace rappor {
-class RapporService;
-}
-
-namespace variations {
-class VariationsService;
-}
-
-// MetricsServicesManager is a helper class for embedders that use the various
-// metrics-related services in a Chrome-like fashion: MetricsService (via its
-// client), RapporService and VariationsService.
-class MetricsServicesManager {
- public:
-  // Creates the MetricsServicesManager with the given client.
-  explicit MetricsServicesManager(
-      scoped_ptr<MetricsServicesManagerClient> client);
-  virtual ~MetricsServicesManager();
-
-  // Returns the MetricsService, creating it if it hasn't been created yet (and
-  // additionally creating the MetricsServiceClient in that case).
-  metrics::MetricsService* GetMetricsService();
-
-  // Returns the RapporService, creating it if it hasn't been created yet.
-  rappor::RapporService* GetRapporService();
-
-  // Returns the VariationsService, creating it if it hasn't been created yet.
-  variations::VariationsService* GetVariationsService();
-
-  // Should be called when a plugin loading error occurs.
-  void OnPluginLoadingError(const base::FilePath& plugin_path);
-
-  // Update the managed services when permissions for recording/uploading
-  // metrics change.
-  void UpdatePermissions(bool may_record, bool may_upload);
-
-  // Update the managed services when permissions for uploading metrics change.
-  void UpdateUploadPermissions(bool may_upload);
-
- private:
-  // Update the managed services when permissions for recording/uploading
-  // metrics change.
-  void UpdateRapporService();
-
-  // Returns the MetricsServiceClient, creating it if it hasn't been
-  // created yet (and additionally creating the MetricsService in that case).
-  metrics::MetricsServiceClient* GetMetricsServiceClient();
-
-  metrics::MetricsStateManager* GetMetricsStateManager();
-
-  // Update which services are running to match current permissions.
-  void UpdateRunningServices();
-
-  // The client passed in from the embedder.
-  scoped_ptr<MetricsServicesManagerClient> client_;
-
-  // Ensures that all functions are called from the same thread.
-  base::ThreadChecker thread_checker_;
-
-  // The current metrics reporting setting.
-  bool may_upload_;
-
-  // The current metrics recording setting.
-  bool may_record_;
-
-  // The MetricsServiceClient. Owns the MetricsService.
-  scoped_ptr<metrics::MetricsServiceClient> metrics_service_client_;
-
-  // The RapporService, for RAPPOR metric uploads.
-  scoped_ptr<rappor::RapporService> rappor_service_;
-
-  // The VariationsService, for server-side experiments infrastructure.
-  scoped_ptr<variations::VariationsService> variations_service_;
-
-  DISALLOW_COPY_AND_ASSIGN(MetricsServicesManager);
-};
-
-#endif  // CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_H_