Power overlay in Settings.

chrome/browser/resources/options/browser_options.js

 // Copyright (c) 2012 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.
 
 cr.exportPath('options');
 
 /**
  * @typedef {{actionLinkText: (string|undefined),
  *            hasError: (boolean|undefined),
  *            hasUnrecoverableError: (boolean|undefined),
@@ skipping 251 matching lines @@
           $('themes-native-button').disabled = true;
           $('themes-native-button').hidden = true;
         }
         // Supervised users have just one default theme, even on Linux. So use
         // the same button for Linux as for the other platforms.
         $('themes-reset').textContent = loadTimeData.getString('themesReset');
       }
 
       // Device section (ChromeOS only).
       if (cr.isChromeOS) {
+        $('power-settings-button').onclick = function(evt) {
+          PageManager.showPageByName('power-overlay');
+          chrome.send('coreOptionsUserMetricsAction',
+                      ['Options_ShowPowerSettings']);
+        };
         $('battery-button').onclick = function(evt) {
           WebsiteSettingsManager.showWebsiteSettings('battery');
         };
         $('stored-data-button').onclick = function(evt) {
           WebsiteSettingsManager.showWebsiteSettings('storage');
         };
         $('keyboard-settings-button').onclick = function(evt) {
           PageManager.showPageByName('keyboard-overlay');
           chrome.send('coreOptionsUserMetricsAction',
                       ['Options_ShowKeyboardSettings']);
@@ skipping 1690 matching lines @@
      * Enables the given element if possible; on Chrome OS, it won't enable
      * an element that must stay disabled for the session type.
      * @param {!Element} element Element to enable.
      */
     enableElementIfPossible_: function(element) {
       if (cr.isChromeOS)
         UIAccountTweaks.enableElementIfPossible(element);
       else
         element.disabled = false;
     },
+
+    /**
+     * Sets the icon in the battery section.
+     * @param {string} iconData The data representing the icon to display.
+     * @private
+     */
+    setBatteryIcon_: function(iconData) {
+      $('battery-icon').style.backgroundImage = 'url(' + iconData + ')';
+      $('battery-icon').hidden = false;
+    },
+
+    /**
+     * Sets the text for the battery section.
+     * @param {string} statusText The battery status, with a relevant label.
+     * @private
+     */
+    setBatteryStatusText_: function(statusText) {
+      $('battery').hidden = !statusText.length;
+      if (statusText.length) {
+        $('battery-status').textContent = statusText;
+        chrome.send('requestBatteryIcon');
+      }
+    },
   };
 
   //Forward public APIs to private implementations.
   cr.makePublic(BrowserOptions, [
     'addBluetoothDevice',
     'deleteCurrentProfile',
     'enableCertificateButton',
     'enableDisplayButton',
     'enableFactoryResetSection',
     'getCurrentProfile',
     'getStartStopSyncButton',
     'hideBluetoothSettings',
     'notifyInitializationComplete',
     'removeBluetoothDevice',
     'scrollToSection',
     'setAccountPictureManaged',
     'setWallpaperManaged',
     'setAutoOpenFileTypesDisplayed',
+    'setBatteryIcon',
+    'setBatteryStatusText',
     'setBluetoothState',
     'setCanSetTime',
     'setFontSize',
     'setNativeThemeButtonEnabled',
     'setNetworkPredictionValue',
     'setHighContrastCheckboxState',
     'setMetricsReportingCheckboxState',
     'setMetricsReportingSettingVisibility',
     'setProfilesInfo',
     'setSpokenFeedbackCheckboxState',
@@ skipping 67 matching lines @@
       }
       button.textContent = loadTimeData.getString(strId);
     };
   }
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 });