Add fingerprint UI in user pod

ui/login/account_picker/screen_account_picker.js

Index: ui/login/account_picker/screen_account_picker.js
diff --git a/ui/login/account_picker/screen_account_picker.js b/ui/login/account_picker/screen_account_picker.js
index d66258e82a379155453c9f2700674540507f0833..572404dfdd6dc4dedc3af414daadb228e75a6830 100644
--- a/ui/login/account_picker/screen_account_picker.js
+++ b/ui/login/account_picker/screen_account_picker.js
@@ -35,6 +35,8 @@ login.createScreen('AccountPickerScreen', 'account-picker', function() {
       'showBannerMessage',
       'showUserPodCustomIcon',
       'hideUserPodCustomIcon',
+      'setUserPodFingerprintIcon',
+      'removeUserPodFingerprintIcon',
       'disablePinKeyboardForUser',
       'setAuthType',
       'setTouchViewState',
@@ -419,6 +421,23 @@ login.createScreen('AccountPickerScreen', 'account-picker', function() {
     },
 
     /**
+     * Set a fingerprint icon in the user pod of |username|.
+     * @param {string} username Username of the selected user
+     * @param {number} state Fingerprint unlock state
+     */
+    setUserPodFingerprintIcon: function(username, state) {
+      $('pod-row').setUserPodFingerprintIcon(username, state);
+    },
+
+    /**
+     * Removes the fingerprint icon in the user pod of |username|.
+     * @param {string} username Username of the selected user.
+     */
+    removeUserPodFingerprintIcon: function(username) {
+      $('pod-row').removeUserPodFingerprintIcon(username);
+    },
+
+    /**
      * Sets the authentication type used to authenticate the user.
      * @param {string} username Username of selected user
      * @param {number} authType Authentication type, must be a valid value in