ScopedTestDeviceSettingsService 364 chrome/browser/chromeos/settings/device_settings_service.cc ScopedTestDeviceSettingsService::ScopedTestDeviceSettingsService() { ScopedTestDeviceSettingsService 368 chrome/browser/chromeos/settings/device_settings_service.cc ScopedTestDeviceSettingsService::~ScopedTestDeviceSettingsService() {