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

chrome/browser/chromeos/login/user.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_USER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 36 matching lines @@
     DEFAULT = 2,
     UNKNOWN = 3
   };
 
   // The email the user used to log in.
   const std::string& email() const { return email_; }
 
   // Returns the human name to display for this user.
   string16 GetDisplayName() const;
 
-  // Returns the account name part of the email.
-  std::string GetAccountName() const;
+  // Returns the account name part of the email. Use the display form of the
+  // email if available and use_display_name == true. Otherwise use canonical.
+  std::string GetAccountName(bool use_display_email) const;
 
   // The image for this user.
   const gfx::ImageSkia& image() const { return image_; }
   int image_index() const { return image_index_; }
 
   // The thumbnail of user custom wallpaper.
   const SkBitmap& wallpaper_thumbnail() const { return wallpaper_thumbnail_; }
 
   // True if user image is a stub (while real image is being loaded from file).
   bool image_is_stub() const { return image_is_stub_; }
@@ skipping 63 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(User);
 };
 
 // List of known users.
 typedef std::vector<User*> UserList;
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_H_