Directly inline shared WebUI CSS declarations into the security and supervised user interstitials.

chrome/browser/ui/webui/chromeos/first_run/first_run_ui.cc

Index: chrome/browser/ui/webui/chromeos/first_run/first_run_ui.cc
diff --git a/chrome/browser/ui/webui/chromeos/first_run/first_run_ui.cc b/chrome/browser/ui/webui/chromeos/first_run/first_run_ui.cc
index dcf70776ce99c36e4caff2212549c2006d54b458..26e670220fa4d31fdb296d51ddd1772eb6084b95 100644
--- a/chrome/browser/ui/webui/chromeos/first_run/first_run_ui.cc
+++ b/chrome/browser/ui/webui/chromeos/first_run/first_run_ui.cc
@@ -85,7 +85,7 @@ content::WebUIDataSource* CreateDataSource() {
   source->SetDefaultResource(IDR_FIRST_RUN_HTML);
   source->AddResourcePath(kFirstRunJSPath, IDR_FIRST_RUN_JS);
   base::DictionaryValue localized_strings;
-  webui::SetFontAndTextDirection(&localized_strings);
+  webui::SetTextDirection(&localized_strings);
   SetLocalizedStrings(&localized_strings);
   source->AddLocalizedStrings(localized_strings);
   return source;