[cros] User images are updated on the login screen.

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

 // Copyright (c) 2011 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.
@@ skipping 157 matching lines @@
      * The user that this pod represents.
      * @type {!Object}
      */
     user_: undefined,
     get user() {
       return this.user_;
     },
     set user(userDict) {
       this.user_ = userDict;
 
+      this.updateUserImage();
+
       this.nameElement.textContent = userDict.name;
-      this.imageElement.src = userDict.imageUrl;
       this.removeUserButtonElement.hidden = !userDict.canRemove;
       this.signedInIndicatorElement.hidden = !userDict.signedIn;
 
       if (this.isGuest) {
         this.imageElement.title = userDict.name;
         this.enterButtonElement.hidden = false;
         this.passwordElement.hidden = true;
         this.signinButtonElement.hidden = true;
       } else {
         var needSignin = this.needGaiaSignin;
@@ skipping 66 matching lines @@
 
     /**
      * Whether the password field is empty.
      * @type {boolean}
      */
     set passwordEmpty(empty) {
       this.passwordElement.classList[empty ? 'add' : 'remove']('empty');
     },
 
     /**
+     * Updates the image element of the user.
+     */
+    updateUserImage: function() {
+      this.imageElement.src = this.isGuest ?
+          'chrome://theme/IDR_LOGIN_GUEST' :
+          'chrome://userimage/' + this.user.emailAddress +
+              '?id=' + (new Date()).getTime();
+    },
+
+    /**
      * Focuses on input element.
      */
     focusInput: function() {
       if (!this.isGuest) {
         var needSignin = this.needGaiaSignin;
         this.signinButtonElement.hidden = !needSignin;
         this.passwordElement.hidden = needSignin;
       }
       this.mainInput.focus();
     },
@@ skipping 317 matching lines @@
     /**
      * Shows signin UI.
      * @param {string} email Email for signin UI.
      */
     showSigninUI: function(email) {
       this.rowEnabled = false;
       Oobe.showSigninUI(email);
     },
 
     /**
+     * Updates current image of a user.
+     * @param {string} email Email of the user for which to update the image.
+     * @public
+     */
+    updateUserImage: function(email) {
+      for (var i = 0; i < this.pods.length; ++i) {
+        if (this.pods[i].user.emailAddress == email)
+          this.pods[i].updateUserImage();
+      }
+    },
+
+    /**
      * Handler of click event.
      * @param {Event} e Click Event object.
      * @private
      */
     handleClick_: function(e) {
       if (!this.rowEnabled)
         return;
       // Clears focus if not clicked on a pod.
       if (e.target.parentNode != this &&
           e.target.parentNode.parentNode != this)
@@ skipping 84 matching lines @@
         this.ownerDocument.removeEventListener(
             event, this.listeners_[event][0], this.listeners_[event][1]);
       }
     }
   };
 
   return {
     PodRow: PodRow
   };
 });