[Smart Lock] Measure clicks on the lock icon during Easy Unlock's trial run.

ui/login/account_picker/screen_account_picker.js

 // Copyright 2014 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 Account picker screen implementation.
  */
 
 login.createScreen('AccountPickerScreen', 'account-picker', function() {
   /**
@@ skipping 272 matching lines @@
       banner.textContent = message;
       banner.classList.toggle('message-set', true);
     },
 
     /**
      * Shows a custom icon in the user pod of |username|. This function
      * is used by the chrome.screenlockPrivate API.
      * @param {string} username Username of pod to add button
      * @param {!{id: !string,
      *           hardlockOnClick: boolean,
+     *           isTrialRun: boolean,
      *           tooltip: ({text: string, autoshow: boolean} | undefined)}} icon
      *     The icon parameters.
      */
     showUserPodCustomIcon: function(username, icon) {
       $('pod-row').showUserPodCustomIcon(username, icon);
     },
 
     /**
      * Hides the custom icon in the user pod of |username| added by
      * showUserPodCustomIcon(). This function is used by the
@@ skipping 55 matching lines @@
      * @param {string} userID The user ID of the public session
      * @param {string} locale The locale to which this list of keyboard layouts
      *     applies
      * @param {!Object} list List of available keyboard layouts
      */
     setPublicSessionKeyboardLayouts: function(userID, locale, list) {
       $('pod-row').setPublicSessionKeyboardLayouts(userID, locale, list);
     }
   };
 });