Fetch policy with refresh token.

chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h

Index: chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h
diff --git a/chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h b/chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h
index fdc7766d61e9098977631243f9e95a7e758f68b8..2b970a65cc03866dcff98859ebadf3d45de1f253 100644
--- a/chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h
+++ b/chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h
@@ -57,6 +57,7 @@ class UserCloudPolicyManagerChromeOS : public CloudPolicyManager,
       scoped_ptr<CloudExternalDataManager> external_data_manager,
       const base::FilePath& component_policy_cache_path,
       bool wait_for_policy_fetch,
+      const std::string& refresh_token,
       base::TimeDelta initial_policy_fetch_timeout,
       const scoped_refptr<base::SequencedTaskRunner>& task_runner,
       const scoped_refptr<base::SequencedTaskRunner>& file_task_runner,
@@ -109,9 +110,10 @@ class UserCloudPolicyManagerChromeOS : public CloudPolicyManager,
   void GetChromePolicy(PolicyMap* policy_map) override;
 
  private:
-  // Fetches a policy token using the authentication context of the signin
-  // context, and calls back to OnOAuth2PolicyTokenFetched when done.
-  void FetchPolicyOAuthTokenUsingSigninContext();
+  // Fetches a policy token using the refresh token if available, or the
+  // authentication context of the signin context, and calls back
+  // OnOAuth2PolicyTokenFetched when done.
+  void FetchPolicyOAuthToken();
 
   // Called once the policy access token is available, and starts the
   // registration with the policy server if the token was successfully fetched.
@@ -150,6 +152,9 @@ class UserCloudPolicyManagerChromeOS : public CloudPolicyManager,
   // IsInitializationComplete().
   bool wait_for_policy_fetch_;
 
+  // OAuth refresh token for fetching policy.
+  std::string refresh_token_;
+
   // A timer that puts a hard limit on the maximum time to wait for the initial
   // policy fetch.
   base::Timer policy_fetch_timeout_;