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| 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 re
turned, 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 str
ing. |
| 21 */ |
| 22 String getUniqueId(@Nullable String salt); |
| 23 } |
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