[IME] migrate the xkb ID to extension based xkb ID.

chrome/browser/chromeos/login/login_display_host_impl.cc

Index: chrome/browser/chromeos/login/login_display_host_impl.cc
diff --git a/chrome/browser/chromeos/login/login_display_host_impl.cc b/chrome/browser/chromeos/login/login_display_host_impl.cc
index 2866397380a024b896e235df9068779e53cfa51f..92dbc4187ac332c6388f685eb929f4c94f754287 100644
--- a/chrome/browser/chromeos/login/login_display_host_impl.cc
+++ b/chrome/browser/chromeos/login/login_display_host_impl.cc
@@ -16,6 +16,7 @@
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
+#include "base/strings/string_split.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/time/time.h"
@@ -61,6 +62,7 @@
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/session_manager_client.h"
+#include "chromeos/ime/extension_ime_util.h"
 #include "chromeos/ime/input_method_manager.h"
 #include "chromeos/login/login_state.h"
 #include "chromeos/settings/timezone_settings.h"
@@ -127,7 +129,10 @@ void DetermineAndSaveHardwareKeyboard(const std::string& locale,
   std::string layout;
   if (!oem_layout.empty()) {
     // If the OEM layout information is provided, use it.
-    layout = oem_layout;
+    std::vector<std::string> layouts;
+    base::SplitString(oem_layout, ',', &layouts);
+    layout = chromeos::extension_ime_util::GetInputMethodIDByKeyboardLayout(
+        layouts[0]);
   } else {
     chromeos::input_method::InputMethodManager* manager =
         chromeos::input_method::InputMethodManager::Get();