Switch to direct use of OwnerSettingsServiceChromeOS::Set() in tests.

chrome/browser/chromeos/ownership/owner_settings_service_chromeos.h

 // Copyright 2014 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_OWNERSHIP_OWNER_SETTINGS_SERVICE_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_CHROMEOS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 177 matching lines @@
 
   content::NotificationRegistrar registrar_;
 
   base::WeakPtrFactory<OwnerSettingsServiceChromeOS> weak_factory_;
 
   base::WeakPtrFactory<OwnerSettingsServiceChromeOS> store_settings_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OwnerSettingsServiceChromeOS);
 };
 
+// Helper class for tests. Allows to set some of the settings that are normally
+// read-only.
+class ScopedTestOwnerSettings {
+ public:
+  ScopedTestOwnerSettings();
+  ~ScopedTestOwnerSettings();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedTestOwnerSettings);
+};
+
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_OWNERSHIP_OWNER_SETTINGS_SERVICE_CHROMEOS_H_