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..0ae17d682055c77139b448df73da08b28fb58d0e
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+++ 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;
+    }
+  };
+});