User pods centered with any resolution.

chrome/browser/resources/chromeos/login/user_pod_row.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.
 
 /**
  * @fileoverview User pod row implementation.
  */
 
 cr.define('login', function() {
   /**
-   * Pod width. 170px Pod + 10px padding + 10px margin on both sides.
-   * @type {number}
-   * @const
-   */
-  var POD_WIDTH = 170 + 2 * (10 + 10);
-
-  /**
    * Number of displayed columns depending on user pod count.
    * @type {Array.<number>}
    * @const
    */
   var COLUMNS = [0, 1, 2, 3, 4, 5, 4, 4, 4, 5, 5, 6, 6, 5, 5, 6, 6, 6, 6];
 
   /**
    * Whether to preselect the first pod automatically on login screen.
    * @type {boolean}
    * @const
@@ skipping 943 matching lines @@
     /**
      * Resizes the pod row and cancel any pending resize operations.
      * @param {number} columns Number of columns.
      * @param {number} rows Number of rows.
      * @private
      */
     resize_: function(columns, rows) {
       this.removeEventListener('mouseout', this.deferredResizeListener_);
       this.columns = columns;
       this.rows = rows;
+      if (this.parentNode == Oobe.getInstance().currentScreen) {
+        Oobe.getInstance().updateScreenSize(this.parentNode);
+      }
     },
 
     /**
      * Number of columns.
      * @type {?number}
      */
     set columns(columns) {
       // Cannot use 'columns' here.
       this.setAttribute('ncolumns', columns);
     },
@@ skipping 391 matching lines @@
         this.classList.remove('images-loading');
         chrome.send('userImagesLoaded');
       }
     }
   };
 
   return {
     PodRow: PodRow
   };
 });