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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 'use strict'; | 5 'use strict'; |
| 6 | 6 |
| 7 /** | 7 /** |
| 8 * Discover the ID of installed cast extesnion. | 8 * Discover the ID of installed cast extension. |
| 9 * @constructor | 9 * @constructor |
| 10 */ | 10 */ |
| 11 function CastExtensionDiscoverer() { | 11 function CastExtensionDiscoverer() { |
| 12 } | 12 } |
| 13 | 13 |
| 14 /** | 14 /** |
| 15 * Tentatice IDs to try. | 15 * Tentatice IDs to try. |
| 16 * @type {Array.<string>} | 16 * @type {Array.<string>} |
| 17 * @const | 17 * @const |
| 18 */ | 18 */ |
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| 74 xhr.onreadystatechange = | 74 xhr.onreadystatechange = |
| 75 /** @param {*} response */ | 75 /** @param {*} response */ |
| 76 function(event) { | 76 function(event) { |
| 77 if (xhr.readyState == 4 && xhr.status === 200) { | 77 if (xhr.readyState == 4 && xhr.status === 200) { |
| 78 // Cast extension found. | 78 // Cast extension found. |
| 79 callback(true); | 79 callback(true); |
| 80 } | 80 } |
| 81 }.wrap(this); | 81 }.wrap(this); |
| 82 xhr.send(); | 82 xhr.send(); |
| 83 }; | 83 }; |
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