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

chrome/browser/chromeos/login/ui/webui_login_display.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/webui_login_display.h"
 
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
 #include "chrome/browser/chromeos/login/screens/chrome_user_selection_screen.h"
 #include "chrome/browser/chromeos/login/signin_screen_controller.h"
@@ skipping 214 matching lines @@
   if (delegate_)
     delegate_->Login(user_context, specifics);
 }
 
 void WebUILoginDisplay::MigrateUserData(const std::string& old_password) {
   DCHECK(delegate_);
   if (delegate_)
     delegate_->MigrateUserData(old_password);
 }
 
-void WebUILoginDisplay::LoadWallpaper(const std::string& username) {
-  WallpaperManager::Get()->SetUserWallpaperDelayed(username);
+void WebUILoginDisplay::LoadWallpaper(const AccountId& account_id) {
+  WallpaperManager::Get()->SetUserWallpaperDelayed(account_id);
 }
 
 void WebUILoginDisplay::LoadSigninWallpaper() {
-  WallpaperManager::Get()->SetDefaultWallpaperDelayed(
-      login::SignInAccountId().GetUserEmail());
+  WallpaperManager::Get()->SetDefaultWallpaperDelayed(login::SignInAccountId());
 }
 
 void WebUILoginDisplay::OnSigninScreenReady() {
   SignInScreenController::Get()->OnSigninScreenReady();
 
   if (delegate_)
     delegate_->OnSigninScreenReady();
 }
 
 void WebUILoginDisplay::RemoveUser(const AccountId& account_id) {
@@ skipping 75 matching lines @@
 }
 
 bool WebUILoginDisplay::IsUserWhitelisted(const std::string& user_id) {
   DCHECK(delegate_);
   if (delegate_)
     return delegate_->IsUserWhitelisted(user_id);
   return true;
 }
 
 }  // namespace chromeos