Add ManagedUserTokenFetcher to fetch scoped-down tokens.

chrome/browser/managed_mode/managed_user_registration_service.h

Index: chrome/browser/managed_mode/managed_user_registration_service.h
diff --git a/chrome/browser/managed_mode/managed_user_registration_service.h b/chrome/browser/managed_mode/managed_user_registration_service.h
index 1a88e592e2ccb2b276b8f4055a0d7f02b0a8a0fd..460d7286fc122e335bc8f47391a2667651a131a6 100644
--- a/chrome/browser/managed_mode/managed_user_registration_service.h
+++ b/chrome/browser/managed_mode/managed_user_registration_service.h
@@ -17,8 +17,13 @@
 #include "sync/api/syncable_service.h"
 
 class GoogleServiceAuthError;
+class ManagedUserTokenFetcher;
 class PrefService;
 
+namespace browser_sync {
+class DeviceInfo;
+}
+
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
@@ -37,7 +42,9 @@ class ManagedUserRegistrationService : public BrowserContextKeyedService,
                               const std::string& /* token */)>
       RegistrationCallback;
 
-  explicit ManagedUserRegistrationService(PrefService* prefs);
+  ManagedUserRegistrationService(
+      PrefService* prefs,
+      scoped_ptr<ManagedUserTokenFetcher> token_fetcher);
   virtual ~ManagedUserRegistrationService();
 
   static void RegisterUserPrefs(user_prefs::PrefRegistrySyncable* registry);
@@ -77,8 +84,13 @@ class ManagedUserRegistrationService : public BrowserContextKeyedService,
   // Called when the Sync server has acknowledged a newly created managed user.
   void OnManagedUserAcknowledged(const std::string& managed_user_id);
 
+  // Fetches the managed user token when we have the device info.
+  void FetchToken(const string16& name,
+                  const browser_sync::DeviceInfo& device_info);
+
   // Called when we have received a token for the managed user.
-  void OnReceivedToken(const std::string& token);
+  void OnReceivedToken(const GoogleServiceAuthError& error,
+                       const std::string& token);
 
   // Dispatches the callback if all the conditions have been met.
   void DispatchCallbackIfReady();
@@ -94,6 +106,7 @@ class ManagedUserRegistrationService : public BrowserContextKeyedService,
   base::WeakPtrFactory<ManagedUserRegistrationService> weak_ptr_factory_;
   PrefService* prefs_;
   PrefChangeRegistrar pref_change_registrar_;
+  scoped_ptr<ManagedUserTokenFetcher> token_fetcher_;
 
   scoped_ptr<syncer::SyncChangeProcessor> sync_processor_;
   scoped_ptr<syncer::SyncErrorFactory> error_handler_;