If user profile doesn't contain language setting, default to his Google account settings.

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_
 
 #include <string>
 #include <vector>
 
@@ skipping 158 matching lines @@
   static User* CreateRegularUser(const std::string& email);
   static User* CreateGuestUser();
   static User* CreateKioskAppUser(const std::string& kiosk_app_username);
   static User* CreateLocallyManagedUser(const std::string& username);
   static User* CreateRetailModeUser();
   static User* CreatePublicAccountUser(const std::string& email);
 
   explicit User(const std::string& email);
   virtual ~User();
 
+  // Used only by UserManagerImpl

[Dmitry Polukhin, 2013/09/06 20:30:05]

Do we need such comment? It will be outdated very soon. Anyway if someone needs
to see all use-cases, he can use codesearch.

[Alexander Alekseev, 2013/09/11 18:53:02]

Done.

+  bool is_profile_created() const {
+    return profile_is_created_;
+  }
+
+  const std::string* GetAccountLocale() const {
+    return account_locale_.get();
+  }
+
   // Setters are private so only UserManager can call them.
+  void SetAccountLocale(const std::string& raw_account_locale);
+
   void SetImage(const UserImage& user_image, int image_index);
 
   void SetImageURL(const GURL& image_url);
 
   // Sets a stub image until the next |SetImage| call. |image_index| may be
   // one of |kExternalImageIndex| or |kProfileImageIndex|.
   // If |is_loading| is |true|, that means user image is being loaded from file.
   void SetStubImage(int image_index, bool is_loading);
 
   void set_oauth_token_status(OAuthTokenStatus status) {
@@ skipping 15 matching lines @@
   }
 
   void set_is_logged_in(bool is_logged_in) {
     is_logged_in_ = is_logged_in;
   }
 
   void set_is_active(bool is_active) {
     is_active_ = is_active;
   }
 
+  void set_profile_is_created() {
+    profile_is_created_ = true;
+  }
+
+  // True if user has google account (not a guest or managed user).
+  bool has_account() const;

[Dmitry Polukhin, 2013/09/06 20:30:05]

I would call it has_gaia_account to make it clear what type of account it is.

[Alexander Alekseev, 2013/09/11 18:53:02]

Done.

+
  private:
   std::string email_;
   string16 display_name_;
   // The displayed user email, defaults to |email_|.
   std::string display_email_;
   UserImage user_image_;
   OAuthTokenStatus oauth_token_status_;
 
+  // This is set to chromeos locale if account data has been downloaded.
+  // (Or failed to download, but at least one download attempt finished).
+  // An empty string indicates error in data load, or in
+  // translation of Account locale to chromeos locale.
+  scoped_ptr<std::string> account_locale_;
+
   // Used to identify homedir mount point.
   std::string username_hash_;
 
   // Either index of a default image for the user, |kExternalImageIndex| or
   // |kProfileImageIndex|.
   int image_index_;
 
   // True if current user image is a stub set by a |SetStubImage| call.
   bool image_is_stub_;
 
   // True if current user image is being loaded from file.
   bool image_is_loading_;
 
   // True if user is currently logged in in current session.
   bool is_logged_in_;
 
   // True if user is currently logged in and active in current session.
   bool is_active_;
 
+  // True if user Profile is created
+  bool profile_is_created_;
+
   DISALLOW_COPY_AND_ASSIGN(User);
 };
 
 // List of known users.
 typedef std::vector<User*> UserList;
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_H_