Refactor: Inject StatisticsProvider as a dependency of DeviceCloudPolicyInitializer.

chrome/browser/chromeos/policy/device_cloud_policy_initializer.h

Index: chrome/browser/chromeos/policy/device_cloud_policy_initializer.h
diff --git a/chrome/browser/chromeos/policy/device_cloud_policy_initializer.h b/chrome/browser/chromeos/policy/device_cloud_policy_initializer.h
index 5859066f61b1ba1b6316acde5c19578d3b697008..db6ab936c6c091164547534cc267c275d4affbc0 100644
--- a/chrome/browser/chromeos/policy/device_cloud_policy_initializer.h
+++ b/chrome/browser/chromeos/policy/device_cloud_policy_initializer.h
@@ -29,6 +29,9 @@ namespace chromeos {
 namespace attestation {
 class AttestationFlow;
 }
+namespace system {
+class StatisticsProvider;
+}
 }
 
 namespace cryptohome {
@@ -62,7 +65,8 @@ class DeviceCloudPolicyInitializer : public CloudPolicyStore::Observer {
       DeviceCloudPolicyStoreChromeOS* device_store,
       DeviceCloudPolicyManagerChromeOS* manager,
       cryptohome::AsyncMethodCaller* async_method_caller,
-      std::unique_ptr<chromeos::attestation::AttestationFlow> attestation_flow);
+      std::unique_ptr<chromeos::attestation::AttestationFlow> attestation_flow,
+      chromeos::system::StatisticsProvider* statistics_provider);
 
   ~DeviceCloudPolicyInitializer() override;
 
@@ -132,6 +136,10 @@ class DeviceCloudPolicyInitializer : public CloudPolicyStore::Observer {
   void TryToCreateClient();
   void StartConnection(std::unique_ptr<CloudPolicyClient> client);
 
+  // Get a machine flag from |statistics_provider_|, returning the given
+  // |default_value| if not present.
+  bool GetMachineFlag(const std::string& key, bool default_value) const;
+
   PrefService* local_state_;
   DeviceManagementService* enterprise_service_;
   scoped_refptr<base::SequencedTaskRunner> background_task_runner_;
@@ -140,6 +148,7 @@ class DeviceCloudPolicyInitializer : public CloudPolicyStore::Observer {
   DeviceCloudPolicyStoreChromeOS* device_store_;
   DeviceCloudPolicyManagerChromeOS* manager_;
   std::unique_ptr<chromeos::attestation::AttestationFlow> attestation_flow_;
+  chromeos::system::StatisticsProvider* statistics_provider_;
   bool is_initialized_ = false;
 
   // Non-NULL if there is an enrollment operation pending.