We should switch the keyboard layout to the layout the user set according to

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index c9c8e7f2d182dbfdcedcca4d6437a3d698291855..60e3391ac9282f26fc676f5b8e38fb7456f59926 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -2120,6 +2120,10 @@ const char kDeviceEnrollmentAutoStart[] = "enrollment.auto_start";
 
 // Whether the user may exit enrollment.
 const char kDeviceEnrollmentCanExit[] = "enrollment.can_exit";
+
+// Dictionary of per-user Least Recently Used input method (used at login
+// screen).
+extern const char kUsersLRUInputMethod[] = "UsersLRUInputMethod";
 #endif
 
 // Whether there is a Flash version installed that supports clearing LSO data.