Chromium Code Reviews| Index: chrome/test/data/webui/print_preview.js | 
| diff --git a/chrome/test/data/webui/print_preview.js b/chrome/test/data/webui/print_preview.js | 
| index f992fe042fb9849f9e0c6b99cac378cf63091e9e..f14d3874c38b64ea50c5a6c65dfbb1dd9e76a23a 100644 | 
| --- a/chrome/test/data/webui/print_preview.js | 
| +++ b/chrome/test/data/webui/print_preview.js | 
| @@ -72,7 +72,8 @@ | 
| assertTrue(cancelButton != null); | 
| }; | 
| - registerCallbacks(); | 
| + if ('window' in this && 'registerCallbacks' in window) | 
| + registerCallbacks(); | 
| internal = { | 
| 'verifyBasicPrintPreviewButtons': verifyBasicPrintPreviewButtons, |