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_