Add UI components for license type selection in ChromeOS login UI.

chrome/browser/chromeos/login/enrollment/enrollment_screen.cc

Index: chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
diff --git a/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc b/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
index b82f94da26b8b17e9030c04594cf1e447489d995..481bc6c2489d7ade43d920afbfc2fa1fd03b5ce7 100644
--- a/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
+++ b/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
@@ -202,6 +202,8 @@ void EnrollmentScreen::OnLoginDone(const std::string& user,
       auth_code, shark_controller_ != nullptr /* fetch_additional_token */);
 }
 
+void EnrollmentScreen::OnLicenseTypeSelected(const std::string& license_type) {}
+
 void EnrollmentScreen::OnRetry() {
   retry_task_.Cancel();
   ProcessRetry();