kiosk: Show enrollment screen first if needed.

chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc

Index: chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc b/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
index d5afc7ecccd774b60d208dcf8244e77475fdf4aa..e3588c3b6aacedb8af193c8491b1469ddeed88cc 100644
--- a/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
+++ b/chrome/browser/ui/webui/chromeos/login/core_oobe_handler.cc
@@ -36,6 +36,7 @@ const char kJsApiEnableLargeCursor[] = "enableLargeCursor";
 const char kJsApiEnableSpokenFeedback[] = "enableSpokenFeedback";
 const char kJsApiScreenStateInitialize[] = "screenStateInitialize";
 const char kJsApiSkipUpdateEnrollAfterEula[] = "skipUpdateEnrollAfterEula";
+const char kJsApiScreenAssetsLoaded[] = "screenAssetsLoaded";
 
 }  // namespace
 
@@ -131,6 +132,8 @@ void CoreOobeHandler::RegisterMessages() {
               &CoreOobeHandler::HandleEnableSpokenFeedback);
   AddCallback("setDeviceRequisition",
               &CoreOobeHandler::HandleSetDeviceRequisition);
+  AddCallback(kJsApiScreenAssetsLoaded,
+              &CoreOobeHandler::HandleScreenAssetsLoaded);
   AddRawCallback("skipToLoginForTesting",
                  &CoreOobeHandler::HandleSkipToLoginForTesting);
 }
@@ -238,6 +241,11 @@ void CoreOobeHandler::HandleSetDeviceRequisition(
   chrome::ExitCleanly();
 }
 
+void CoreOobeHandler::HandleScreenAssetsLoaded(
+    const std::string& screen_async_load_id) {
+  oobe_ui_->OnScreenAssetsLoaded(screen_async_load_id);
+}
+
 void CoreOobeHandler::HandleSkipToLoginForTesting(
     const base::ListValue* args) {
   LoginScreenContext context(args);