| Index: test/browser/elemHideEmulation.js | 
| =================================================================== | 
| --- a/test/browser/elemHideEmulation.js | 
| +++ b/test/browser/elemHideEmulation.js | 
| @@ -148,23 +148,16 @@ | 
| } | 
| // Create a new ElemHideEmulation instance with @selectors. | 
| function applyElemHideEmulation(selectors) | 
| { | 
| return Promise.resolve().then(() => | 
| { | 
| let elemHideEmulation = new ElemHideEmulation( | 
| - newSelectors => | 
| - { | 
| - if (!newSelectors.length) | 
| - return; | 
| - let selector = newSelectors.join(", "); | 
| - insertStyleRule(selector + "{display: none !important;}"); | 
| - }, | 
| elems => | 
| { | 
| for (let elem of elems) | 
| elem.style.display = "none"; | 
| } | 
| ); | 
| elemHideEmulation.document = testDocument; |