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

chrome/browser/chromeos/input_method/input_method_manager_impl.cc

Index: chrome/browser/chromeos/input_method/input_method_manager_impl.cc
diff --git a/chrome/browser/chromeos/input_method/input_method_manager_impl.cc b/chrome/browser/chromeos/input_method/input_method_manager_impl.cc
index 8fda319f81d34e72e41f833899cd88e2ca259a6f..400b8b0c2a205d22ec80a7dd15b5bb4b91f398f1 100644
--- a/chrome/browser/chromeos/input_method/input_method_manager_impl.cc
+++ b/chrome/browser/chromeos/input_method/input_method_manager_impl.cc
@@ -50,6 +50,11 @@ bool InputMethodManagerImpl::IsLoginKeyboard(
   return util_.IsLoginKeyboard(layout);
 }
 
+bool InputMethodManagerImpl::MigrateXkbInputMethods(
+    std::vector<std::string>* input_method_ids) {
+  return util_.MigrateXkbInputMethods(input_method_ids);
+}
+
 InputMethodManagerImpl::InputMethodManagerImpl(
     scoped_ptr<InputMethodDelegate> delegate)
     : delegate_(delegate.Pass()),