css = injectCssFile(hostDoc, "gerrit_sitecss", site.site_css);
header = injectXmlFile(hostDoc, "gerrit_header", site.site_header);
footer = injectXmlFile(hostDoc, "gerrit_footer", site.site_footer);
final HostPageData pageData = new HostPageData();
pageData.config = config;
final StringWriter w = new StringWriter();
w.write("var " + HPD_ID + "=");
json(pageData, w);