Added strings of i18n and made the pin-keyboard work for rtl lang.

ui/login/account_picker/user_pod_row.css

Index: ui/login/account_picker/user_pod_row.css
diff --git a/ui/login/account_picker/user_pod_row.css b/ui/login/account_picker/user_pod_row.css
index adf840750d9da3dcc5cd2d397635d223b87f04a8..973b2ceba66d122c6a0061c0c47d3657fdbe9ac2 100644
--- a/ui/login/account_picker/user_pod_row.css
+++ b/ui/login/account_picker/user_pod_row.css
@@ -66,6 +66,10 @@ podrow[ncolumns='6'] .pod {
   transform: scale3d(0.8, 0.8, 0.8);
 }
 
+html[dir=rtl] .pin-keyboard-input-non-pin {
+  direction: rtl;
+}
+
 .pod.focused {
   /* Focused pod has the same size no matter how many pods. */
   cursor: default;