Show account part of the display email when real name is not available.

chrome/browser/chromeos/login/user.cc

 // Copyright (c) 2012 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/user.h"
 
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/login/default_user_images.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
@@ skipping 48 matching lines @@
   image_ = *ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
       kStubImageResourceID);
   image_index_ = image_index;
   image_is_stub_ = true;
 }
 
 void User::SetWallpaperThumbnail(const SkBitmap& wallpaper_thumbnail) {
   wallpaper_thumbnail_ = wallpaper_thumbnail;
 }
 
-std::string User::GetAccountName() const {
-  return GetUserName(email_);
+std::string User::GetAccountName(bool use_display_email) const {
+  if (use_display_email && !display_email_.empty())
+    return GetUserName(display_email_);
+  else
+    return GetUserName(email_);
 }
 
 string16 User::GetDisplayName() const {
   return display_name_;
 }
 
 }  // namespace chromeos