Bug 1023862 - Electrolysis (e10s) support for the requestAutocomplete testing framework. r=MattN

--HG--
rename : toolkit/components/formautofill/test/browser/head.js => toolkit/components/formautofill/test/browser/loader.js
rename : toolkit/components/formautofill/test/chrome/head.js => toolkit/components/formautofill/test/chrome/loader.js
rename : toolkit/components/formautofill/test/xpcshell/head.js => toolkit/components/formautofill/test/xpcshell/loader.js