Don't record Signin_Signin_From* user actions for re-auth, unlock and adding secondary account

chrome/browser/resources/inline_login/inline_login.js

 // Copyright 2013 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 Inline login UI.
  */
 
 cr.define('inline.login', function() {
   'use strict';
 
   /**
    * The auth extension host instance.
    * @type {cr.login.GaiaAuthHost}
    */
   var authExtHost;
 
   /**
    * Whether the auth ready event has been fired, for testing purpose.
    */
   var authReadyFired;
 
+  /**
+  * Whether the login UI is loaded for signing in primary account.
+  */
+  var isLoginPrimaryAccount;
+
   function onResize(e) {
     chrome.send('switchToFullTab', [e.detail]);
   }
 
   function onAuthReady(e) {
     $('contents').classList.toggle('loading', false);
     authReadyFired = true;
-    chrome.send('metricsHandler:recordAction', ['Signin_SigninPage_Shown']);
+    if (isLoginPrimaryAccount)
+      chrome.send('metricsHandler:recordAction', ['Signin_SigninPage_Shown']);
   }
 
   function onDropLink(e) {
     // Navigate to the dropped link.
     window.location.href = e.detail;
   }
 
   function onNewWindow(e) {
     window.open(e.detail.targetUrl, '_blank');
     e.detail.window.discard();
@@ skipping 26 matching lines @@
    * Loads auth extension.
    * @param {Object} data Parameters for auth extension.
    */
   function loadAuthExtension(data) {
     // TODO(rogerta): in when using webview, the |completeLogin| argument
     // is ignored.  See addEventListener() call above.
     authExtHost.load(data.authMode, data, completeLogin);
     $('contents').classList.toggle('loading',
         data.authMode != cr.login.GaiaAuthHost.AuthMode.DESKTOP ||
         data.constrained == '1');
+    isLoginPrimaryAccount = data.isLoginPrimaryAccount;
   }
 
   /**
    * Closes the inline login dialog.
    */
   function closeDialog() {
     chrome.send('dialogClose', ['']);
   }
 
   /**
@@ skipping 46 matching lines @@
     initialize: initialize,
     isAuthReady: isAuthReady,
     loadAuthExtension: loadAuthExtension,
     navigationButtonClicked: navigationButtonClicked,
     showBackButton: showBackButton,
     showCloseButton: showCloseButton
   };
 });
 
 document.addEventListener('DOMContentLoaded', inline.login.initialize);