This CL replaces e-mail with AccountId in wallpaper manager code.

chrome/browser/chromeos/login/ui/user_adding_screen.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "base/bind.h"
 #include "base/memory/singleton.h"
@@ skipping 52 matching lines @@
 void UserAddingScreenImpl::Cancel() {
   CHECK(IsRunning());
 
   // Make sure that system tray is enabled after this flow.
   ash::Shell::GetInstance()->GetPrimarySystemTray()->SetEnabled(true);
   display_host_->Finalize();
 
   // Reset wallpaper if cancel adding user from multiple user sign in page.
   if (user_manager::UserManager::Get()->IsUserLoggedIn()) {
     WallpaperManager::Get()->SetUserWallpaperDelayed(
-        user_manager::UserManager::Get()->GetActiveUser()->email());
+        user_manager::UserManager::Get()->GetActiveUser()->GetAccountId());
   }
 }
 
 bool UserAddingScreenImpl::IsRunning() {
   return display_host_ != NULL;
 }
 
 void UserAddingScreenImpl::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
@@ skipping 27 matching lines @@
 
 UserAddingScreen::UserAddingScreen() {}
 UserAddingScreen::~UserAddingScreen() {}
 
 UserAddingScreen* UserAddingScreen::Get() {
   return UserAddingScreenImpl::GetInstance();
 }
 
 }  // namespace chromeos