[DICE] Enable sync for an account that is already present in the token service.

chrome/browser/policy/cloud/user_policy_signin_service_base.h

 // Copyright 2013 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_POLICY_CLOUD_USER_POLICY_SIGNIN_SERVICE_BASE_H_
 #define CHROME_BROWSER_POLICY_CLOUD_USER_POLICY_SIGNIN_SERVICE_BASE_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 54 matching lines @@
   UserPolicySigninServiceBase(
       Profile* profile,
       PrefService* local_state,
       DeviceManagementService* device_management_service,
       UserCloudPolicyManager* policy_manager,
       SigninManager* signin_manager,
       scoped_refptr<net::URLRequestContextGetter> system_request_context);
   ~UserPolicySigninServiceBase() override;
 
   // Initiates a policy fetch as part of user signin, using a |dm_token| and
-  // |client_id| fetched via RegisterForPolicy(). |callback| is invoked
+  // |client_id| fetched via RegisterForPolicyXXX(). |callback| is invoked
   // once the policy fetch is complete, passing true if the policy fetch
   // succeeded.
   void FetchPolicyForSignedInUser(
       const std::string& username,
       const std::string& dm_token,
       const std::string& client_id,
       scoped_refptr<net::URLRequestContextGetter> profile_request_context,
       const PolicyFetchCallback& callback);
 
   // SigninManagerBase::Observer implementation:
@@ skipping 85 matching lines @@
   scoped_refptr<net::URLRequestContextGetter> system_request_context_;
 
   base::WeakPtrFactory<UserPolicySigninServiceBase> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UserPolicySigninServiceBase);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CLOUD_USER_POLICY_SIGNIN_SERVICE_BASE_H_