[sync] Display an error when sync settings aren't confirmed

chrome/browser/resources/settings/people_page/people_page.js

 // Copyright 2015 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
  * 'settings-people-page' is the settings page containing sign-in settings.
  */
 Polymer({
   is: 'settings-people-page',
@@ skipping 302 matching lines @@
           // prompt them to sign back in.
           this.syncBrowserProxy_.signOut(false);
           this.syncBrowserProxy_.startSignIn();
         }
 // </if>
         break;
       case settings.StatusAction.UPGRADE_CLIENT:
         settings.navigateTo(settings.Route.ABOUT);
         break;
       case settings.StatusAction.ENTER_PASSPHRASE:
+      case settings.StatusAction.CONFIRM_SYNC_SETTINGS:
       case settings.StatusAction.NO_ACTION:
       default:
         settings.navigateTo(settings.Route.SYNC);
     }
   },
 
 // <if expr="chromeos">
   /**
    * @param {!Event} e
    * @private
@@ skipping 120 matching lines @@
 
   /**
    * @param {!settings.SyncStatus} syncStatus
    * @return {boolean} Whether to show the "Sign in to Chrome" button.
    * @private
    */
   showSignin_: function(syncStatus) {
     return !!syncStatus.signinAllowed && !syncStatus.signedIn;
   },
 });