Revert of Eliminate //chrome dependencies from MetricsServicesManager

chrome/browser/metrics/chrome_metrics_services_manager_client.h

-// Copyright 2015 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_CHROME_METRICS_SERVICES_MANAGER_CLIENT_H_
-#define CHROME_BROWSER_METRICS_CHROME_METRICS_SERVICES_MANAGER_CLIENT_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/threading/thread_checker.h"
-#include "chrome/browser/metrics/metrics_services_manager_client.h"
-#include "chrome/browser/safe_browsing/safe_browsing_service.h"
-
-class PrefService;
-
-namespace metrics {
-class MetricsStateManager;
-}
-
-// Provides a //chrome-specific implementation of MetricsServicesManagerClient.
-class ChromeMetricsServicesManagerClient : public MetricsServicesManagerClient {
- public:
-  explicit ChromeMetricsServicesManagerClient(PrefService* local_state);
-  ~ChromeMetricsServicesManagerClient() override;
-
- private:
-  // MetricsServicesManagerClient:
-  scoped_ptr<rappor::RapporService> CreateRapporService() override;
-  scoped_ptr<variations::VariationsService> CreateVariationsService() override;
-  scoped_ptr<metrics::MetricsServiceClient> CreateMetricsServiceClient()
-      override;
-  net::URLRequestContextGetter* GetURLRequestContext() override;
-  bool IsSafeBrowsingEnabled(const base::Closure& on_update_callback) override;
-  bool IsMetricsReportingEnabled() override;
-  bool OnlyDoMetricsRecording() override;
-
-  // Gets the MetricsStateManager, creating it if it has not already been
-  // created.
-  metrics::MetricsStateManager* GetMetricsStateManager();
-
-  // MetricsStateManager which is passed as a parameter to service constructors.
-  scoped_ptr<metrics::MetricsStateManager> metrics_state_manager_;
-
-  // Ensures that all functions are called from the same thread.
-  base::ThreadChecker thread_checker_;
-
-  // Weak pointer to the local state prefs store.
-  PrefService* local_state_;
-
-  // Subscription to SafeBrowsing service state changes.
-  scoped_ptr<SafeBrowsingService::StateSubscription> sb_state_subscription_;
-
-  DISALLOW_COPY_AND_ASSIGN(ChromeMetricsServicesManagerClient);
-};
-
-#endif  // CHROME_BROWSER_METRICS_CHROME_METRICS_SERVICES_MANAGER_CLIENT_H_