Disable rendering when suspending on chrome os

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

 // Copyright 2013 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 Common OOBE controller methods.
  */
 
 <include src="test_util.js">
 <include src="../../../../../ui/login/screen.js">
@@ skipping 77 matching lines @@
 
   /**
    * Update body class to switch between OOBE UI and Login UI.
    */
   Oobe.showOobeUI = function(showOobe) {
     if (showOobe) {
       document.body.classList.add('oobe-display');
 
       // Callback to animate the header bar in.
       var showHeaderBar = function() {
-        login.HeaderBar.animateIn(function() {
+        login.HeaderBar.animateIn(false, function() {
           chrome.send('headerBarVisible');
         });
       };
       // Start asynchronously so the OOBE network screen comes in first.
       window.setTimeout(showHeaderBar, HEADER_BAR_DELAY_MS);
     } else {
       document.body.classList.remove('oobe-display');
       Oobe.getInstance().prepareForLoginDisplay_();
       // Ensure header bar is visible when switching to Login UI from oobe.
       if (Oobe.getInstance().displayType == DISPLAY_TYPE.OOBE)
-        login.HeaderBar.animateIn();
+        login.HeaderBar.animateIn(true);
     }
 
     Oobe.getInstance().headerHidden = false;
   };
 
   /**
    * When |showShutdown| is set to "true", the shutdown button is shown and the
    * reboot button hidden. If set to "false", the reboot button is visible and
    * the shutdown button hidden.
    */
@@ skipping 84 matching lines @@
   Oobe.animateAuthenticationSuccess = function() {
     login.HeaderBar.animateOut(function() {
       chrome.send('unlockOnLoginSuccess');
     });
   };
 
   /**
    * Displays animations that have to happen once login UI is fully displayed.
    */
   Oobe.animateOnceFullyDisplayed = function() {
-    login.HeaderBar.animateIn();
+    login.HeaderBar.animateIn(true, function() {
+      chrome.send('headerBarVisible');
+    });
   };
 
   /**
    * Sets text content for a div with |labelId|.
    * @param {string} labelId Id of the label div.
    * @param {string} labelText Text for the label.
    */
   Oobe.setLabelText = function(labelId, labelText) {
     DisplayManager.setLabelText(labelId, labelText);
   };
@@ skipping 171 matching lines @@
   document.addEventListener('DOMContentLoaded', function() {
     if (!window['WAIT_FOR_POLYMER']) {
       initializeOobe();
       return;
     }
     window.addEventListener('polymer-ready', function() {
       initializeOobe();
     });
   });
 })();