Convert UserPolicySigninService to use OAuth2TokenService

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 <string>
 
 #include "base/basictypes.h"
@@ skipping 98 matching lines @@
   // signs-in and an OAuth2 login refresh token becomes available.
   void InitializeForSignedInUser(const std::string& username);
 
   // Initializes the cloud policy manager with the passed |client|. This is
   // called from InitializeForSignedInUser() when the Profile already has a
   // signed in account at startup, and from FetchPolicyForSignedInUser() during
   // the initial policy fetch after signing in.
   virtual void InitializeUserCloudPolicyManager(
       scoped_ptr<CloudPolicyClient> client);
 
+  // Prepares for the UserCloudPolicyManager to be shutdown due to
+  // user signout or profile destruction.
+  virtual void PrepareForUserCloudPolicyManagerShutdown();
+
   // Shuts down the UserCloudPolicyManager (for example, after the user signs
   // out) and deletes any cached policy.
   virtual void ShutdownUserCloudPolicyManager();
 
   // Convenience helper to get the UserCloudPolicyManager for |profile_|.
   UserCloudPolicyManager* GetManager();
 
   Profile* profile() { return profile_; }
   content::NotificationRegistrar* registrar() { return &registrar_; }
 
  private:
   // Weak pointer to the profile this service is associated with.
   Profile* profile_;
 
   content::NotificationRegistrar registrar_;
 
   PrefService* local_state_;
   DeviceManagementService* device_management_service_;
 
   base::WeakPtrFactory<UserPolicySigninServiceBase> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UserPolicySigninServiceBase);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CLOUD_USER_POLICY_SIGNIN_SERVICE_BASE_H_