CrOS settings/metrics: Correctly store Subscriptions

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 <memory>
 
 #include "base/feature_list.h"
 #include "base/macros.h"
 #include "base/metrics/field_trial.h"
 #include "base/threading/thread_checker.h"
 #include "components/metrics_services_manager/metrics_services_manager_client.h"
 
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/settings/cros_settings.h"
+#endif
+
 class PrefService;
 
 namespace metrics {
 class EnabledStateProvider;
 class MetricsStateManager;
 }
 
 namespace version_info {
 enum class Channel;
 }
@@ skipping 59 matching lines @@
   // EnabledStateProvider to communicate if the client has consented to metrics
   // reporting, and if it's enabled.
   std::unique_ptr<metrics::EnabledStateProvider> enabled_state_provider_;
 
   // 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_;
 
+#if defined(OS_CHROMEOS)
+  std::unique_ptr<chromeos::CrosSettings::ObserverSubscription>
+      cros_settings_observer_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(ChromeMetricsServicesManagerClient);
 };
 
 #endif  // CHROME_BROWSER_METRICS_CHROME_METRICS_SERVICES_MANAGER_CLIENT_H_