Enable user change background image in settings page in Aura build.

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 14 matching lines @@
 // to by |email()|.
 class User {
  public:
   // User OAuth token status according to the last check.
   typedef enum {
     OAUTH_TOKEN_STATUS_UNKNOWN = 0,
     OAUTH_TOKEN_STATUS_INVALID = 1,
     OAUTH_TOKEN_STATUS_VALID   = 2,
   } OAuthTokenStatus;
 
+  static const int kDefaultWallpaperIndex = 0;

[flackr, 2012/03/05 16:16:03]

Comment.

   // Returned as |image_index| when user-selected file or photo is used as
   // user image.
   static const int kExternalImageIndex = -1;
   // Returned as |image_index| when user profile image is used as user image.
   static const int kProfileImageIndex = -2;
   static const int kInvalidImageIndex = -3;
 
   // The email the user used to log in.
   const std::string& email() const { return email_; }
 
   // Returns the name to display for this user.
   std::string GetDisplayName() const;
   // Returns the account name part of the email.
   std::string GetAccountName() const;
 
   // Tooltip contains user's display name and his email domain to distinguish
   // this user from the other one with the same display name.
   std::string GetNameTooltip() const;
 
   // Returns true if some users have same display name.
   bool NeedsNameTooltip() const;
 
   // The image for this user.
   const SkBitmap& image() const { return image_; }
   int image_index() const { return image_index_; }
 
+  int wallpaper_index() const {return wallpaper_index_;}

[flackr, 2012/03/05 16:16:03]

Comment

[bshe, 2012/03/06 01:33:27]

The function doesn't seem to work after user logout. Will add comments after I
identify the problem

+
   // True if user image is a stub (while real image is being loaded from file).
   bool image_is_stub() const { return image_is_stub_; }
 
   // OAuth token status for this user.
   OAuthTokenStatus oauth_token_status() const { return oauth_token_status_; }
 
   // The displayed (non-canonical) user email.
   std::string display_email() const { return display_email_; }
 
   bool is_guest() const { return is_guest_; }
 
  private:
   friend class UserManager;
 
   // Do not allow anyone else to create new User instances.
   User(const std::string& email, bool is_guest);
   ~User();
 
+  void SetWallpaper(int wallpaper_index);

[flackr, 2012/03/05 16:16:03]

Comment.

+
   // Setters are private so only UserManager can call them.
   void SetImage(const SkBitmap& image, int image_index);
   // Sets a stub image until the next |SetImage| call. |image_index| may be
   // one of |kExternalImageIndex| or |kProfileImageIndex|.
   void SetStubImage(int image_index);
 
   void set_oauth_token_status(OAuthTokenStatus status) {
     oauth_token_status_ = status;
   }
 
   void set_display_email(const std::string& display_email) {
     display_email_ = display_email;
   }
 
   std::string email_;
   // The displayed user email, defaults to |email_|.
   std::string display_email_;
   SkBitmap image_;
   OAuthTokenStatus oauth_token_status_;
 
   // Either index of a default image for the user, |kExternalImageIndex| or
   // |kProfileImageIndex|.
   int image_index_;
 
+  int wallpaper_index_;

[flackr, 2012/03/05 16:16:03]

Comment.

+
   // True if current user image is a stub set by a |SetStubImage| call.
   bool image_is_stub_;
 
   // Is this a guest account?
   bool is_guest_;
 
   DISALLOW_COPY_AND_ASSIGN(User);
 };
 
 // List of known users.
 typedef std::vector<User*> UserList;
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_H_