bug 804605 - backout 766973 767158 785050 r=backout a=akeybl

--HG--
extra : rebase_source : ddcecda9877208372f23ebeb081a6443a72adc17
Bug 830399. Add JSAutoCompartment in nsXMLHttpRequest::GetInterface. r=bz a=akeybl
Bug 828286 - SVG stylesheet not enabled for SVG loaded as data and then imported with importNode. r=dholbert a=akeybl