Refactor: Inject StatisticsProvider as a dependency of DeviceCloudPolicyInitializer.

components/policy/core/common/cloud/cloud_policy_client.h

Index: components/policy/core/common/cloud/cloud_policy_client.h
diff --git a/components/policy/core/common/cloud/cloud_policy_client.h b/components/policy/core/common/cloud/cloud_policy_client.h
index d2e3f8775256a9297ce8dfa6522cd9f0c9c77bf0..638b79f1c77af369d3bd5724bbc9560da45c988c 100644
--- a/components/policy/core/common/cloud/cloud_policy_client.h
+++ b/components/policy/core/common/cloud/cloud_policy_client.h
@@ -200,6 +200,9 @@ class POLICY_EXPORT CloudPolicyClient {
   // Removes the specified observer.
   void RemoveObserver(Observer* observer);
 
+  const std::string& machine_id() const { return machine_id_; }
+  const std::string& machine_model() const { return machine_model_; }
+
   void set_submit_machine_id(bool submit_machine_id) {
     submit_machine_id_ = submit_machine_id;
   }
@@ -378,12 +381,14 @@ class POLICY_EXPORT CloudPolicyClient {
   std::string dm_token_;
   DeviceMode device_mode_ = DEVICE_MODE_NOT_SET;
   std::string client_id_;
-  bool submit_machine_id_ = false;
   base::Time last_policy_timestamp_;
   int public_key_version_ = -1;
   bool public_key_version_valid_ = false;
   std::string robot_api_auth_code_;
 
+  // Whether to send |machine_id_| as part of policy fetch.

[Thiemo Nagel, 2016/09/27 16:09:06]

On the occasion, add a comment to clarify the role of submit_machine_id_.

+  bool submit_machine_id_ = false;
+
   // Information for the latest policy invalidation received.
   int64_t invalidation_version_ = 0;
   std::string invalidation_payload_;