Revert "Bug 1977690 - Remove unused AppRequestInterceptor in androidTests r=aaronmt" for causing fenix-debug failures.
This reverts commit bc9dc5f4296482e17560627acaacd2797e462211.
<!doctype html><htmlclass="reftest-wait"><head><metacharset=utf-8><title>Bug 1359658: Animation-only dirty descendants bit should be cleared for display:none content</title></head><body><divid="ancestor"><svg><rectid="target"width="100%"height="100%"fill="lime"/></svg></div></body><script>'use strict';constancestor=document.getElementById('ancestor');consttarget=document.getElementById('target');document.addEventListener('DOMContentLoaded',()=>{constanimation=target.animate({color:['red','lime']},{duration:1000,iterations:Infinity});requestAnimationFrame(()=>{// Tweak animation to cause animation dirty bit to be setanimation.effect.updateTiming({duration:2000});ancestor.style.display="none";getComputedStyle(ancestor).display;document.documentElement.className='';});});</script></html>