Create OOBE screen for Waiting for Container ready

chrome/browser/resources/chromeos/login/oobe_screen_wait_for_container_ready.js

Index: chrome/browser/resources/chromeos/login/oobe_screen_wait_for_container_ready.js
diff --git a/chrome/browser/resources/chromeos/login/oobe_screen_wait_for_container_ready.js b/chrome/browser/resources/chromeos/login/oobe_screen_wait_for_container_ready.js
new file mode 100644
index 0000000000000000000000000000000000000000..55d90f7e56a3bc59d7c0d4fdb336ddcd97ea9f26
--- /dev/null
+++ b/chrome/browser/resources/chromeos/login/oobe_screen_wait_for_container_ready.js
@@ -0,0 +1,18 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/**
+ * @fileoverview Oobe Wait For Container Ready screen implementation.
+ */
+
+login.createScreen(
+    'WaitForContainerReadyScreen', 'wait-for-container-ready', function() {
+      return {
+
+        /** @Override */
+        onBeforeShow: function(data) {
+          Oobe.getInstance().headerHidden = true;
+        }
+      };
+    });