1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 package org.chromium.chrome.browser.identity; 6 7 import javax.annotation.Nullable; 8 9 /** 10 * Interface used for uniquely identifying an installation of Chrome. To get an instance you should 11 * use {@link UniqueIdentificationGeneratorFactory}. 12 */ 13 public interface UniqueIdentificationGenerator { 14 /** 15 * Creates a string that uniquely identifies this installation. 16 * <p/> 17 * If there is an error in generating the string, an empty string must be returned, not null. 18 * 19 * @param salt the salt to use for the unique ID. 20 * @return a unique ID. On failure to generate, it must return the empty string. 21 */ 22 String getUniqueId(@Nullable String salt); 23 } 24
