Split the policy refresh rate preference into user- and device-policy refresh rate.

chrome/browser/policy/cloud_policy_subsystem.h

Index: chrome/browser/policy/cloud_policy_subsystem.h
diff --git a/chrome/browser/policy/cloud_policy_subsystem.h b/chrome/browser/policy/cloud_policy_subsystem.h
index f15142b73f2580f99d9f0f0f1e68eaf6dae62795..ca8655667805c40d7fd0f2550f21b326882f96f7 100644
--- a/chrome/browser/policy/cloud_policy_subsystem.h
+++ b/chrome/browser/policy/cloud_policy_subsystem.h
@@ -80,7 +80,7 @@ class CloudPolicySubsystem
   virtual void OnIPAddressChanged() OVERRIDE;
 
   // Initializes the subsystem.
-  void Initialize(PrefService* prefs,
+  void Initialize(const char* refresh_pref_name,
                   net::URLRequestContextGetter* request_context);
 
   // Shuts the subsystem down. This must be called before threading and network
@@ -115,9 +115,6 @@ class CloudPolicySubsystem
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
-  // The pref service that controls the refresh rate.
-  PrefService* prefs_;
-
   // Tracks the pref value for the policy refresh rate.
   IntegerPrefMember policy_refresh_rate_;