// 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.
package org.chromium.chrome.browser.identity;
import javax.annotation.Nullable;
/**
* Interface used for uniquely identifying an installation of Chrome. To get an instance you should
* use {@link UniqueIdentificationGeneratorFactory}.
*/
public interface UniqueIdentificationGenerator {
/**
* Creates a string that uniquely identifies this installation.
* <p/>
* If there is an error in generating the string, an empty string must be returned, not null.
*
* @param salt the salt to use for the unique ID.
* @return a unique ID. On failure to generate, it must return the empty string.
*/
String getUniqueId(@Nullable String salt);
}