UserPolicyCache only becomes ready after policy has been fetched.

chrome/browser/policy/browser_policy_connector.h

 // Copyright (c) 2011 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_BROWSER_POLICY_CONNECTOR_H_
 #define CHROME_BROWSER_POLICY_BROWSER_POLICY_CONNECTOR_H_
 #pragma once
 
 #include <string>
 
@@ skipping 80 matching lines @@
 
   // Initiates a user policy fetch after a successful device registration. This
   // is only safe to call when a user device token is available.
   void FetchUserPolicy();
 
   // Schedules initialization of the cloud policy backend services, if the
   // services are already constructed.
   void ScheduleServiceInitialization(int64 delay_milliseconds);
 
   // Initializes the user cloud policy infrastructure.
-  void InitializeUserPolicy(const std::string& user_name);
+  // Returns true if initialization of the user cloud policy will block Profile
+  // creation until a user policy fetch is performed.

[Mattias Nissler (ping if slow), 2011/11/11 11:41:23]

This return value is easy to miss and the results may be quite fatal ;) I'd
rather see a GetUserAffiliation() call from LoginUtils, make the decision there
and then call a to-be-created SetWaitForUserPolicy().

[Joao da Silva, 2011/11/11 12:55:14]

Done, in a slightly different form. The decision is made in LoginUtils, but is
passed into this function as a parameter. This is required when the
UserPolicyCache is created.

+  bool InitializeUserPolicy(const std::string& user_name);
 
   // Installs a token service for user policy.
   void SetUserPolicyTokenService(TokenService* token_service);
 
   // Registers for user policy (if not already registered), using the passed
-  // OAuth V2 token for authentication.
+  // OAuth V2 token for authentication. |oauth_token| can be empty to signal
+  // that an attempt to fetch the token was made but failed, or that oauth
+  // isn't being used.
   void RegisterForUserPolicy(const std::string& oauth_token);
 
   const CloudPolicyDataStore* GetDeviceCloudPolicyDataStore() const;
   const CloudPolicyDataStore* GetUserCloudPolicyDataStore() const;
 
   const ConfigurationPolicyHandlerList* GetHandlerList() const;
 
  private:
   friend class ::TestingBrowserProcess;
 
@@ skipping 60 matching lines @@
 
   // Used to convert policies to preferences.
   ConfigurationPolicyHandlerList handler_list_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPolicyConnector);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_BROWSER_POLICY_CONNECTOR_H_