Re-enabled UserCloudPolicyManagerChromeOS unit tests

chrome/browser/chromeos/policy/user_cloud_policy_manager_chromeos.h

 // Copyright (c) 2012 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_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_CHROMEOS_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 87 matching lines @@
   void OnPolicyFetched(CloudPolicyClient* client) override;
   void OnRegistrationStateChanged(CloudPolicyClient* client) override;
   void OnClientError(CloudPolicyClient* client) override;
 
   // ComponentCloudPolicyService::Delegate:
   void OnComponentCloudPolicyUpdated() override;
 
   // CloudPolicyManager:
   void OnStoreLoaded(CloudPolicyStore* cloud_policy_store) override;
 
+  // Helper function to force a policy fetch timeout.
+  void ForceTimeoutForTest();
+
  protected:
   // CloudPolicyManager:
   void GetChromePolicy(PolicyMap* policy_map) override;
 
  private:
   // 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();
 
@@ skipping 64 matching lines @@
   base::Time time_init_completed_;
   base::Time time_token_available_;
   base::Time time_client_registered_;
 
   DISALLOW_COPY_AND_ASSIGN(UserCloudPolicyManagerChromeOS);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_CHROMEOS_H_