Speed up custom wallpaper switching time and wallpaper manager code refactor

chrome/browser/chromeos/login/user_manager.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_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_
 
 #include <string>
 
 #include "ash/desktop_background/desktop_background_resources.h"
@@ skipping 97 matching lines @@
   virtual void GuestUserLoggedIn() = 0;
 
   // Indicates that a user just logged in as ephemeral.
   virtual void EphemeralUserLoggedIn(const std::string& email) = 0;
 
   // Initializes wallpaper. If logged in, loads user's wallpaper. If not logged
   // in, uses a solid color wallpaper. If logged in as a stub user, uses an
   // empty wallpaper.
   virtual void InitializeWallpaper() = 0;
 
-  // Called when user pod with |email| is selected.
-  virtual void UserSelected(const std::string& email) = 0;
-
   // Called when browser session is started i.e. after
   // browser_creator.LaunchBrowser(...) was called after user sign in.
   // When user is at the image screen IsUserLoggedIn() will return true
   // but SessionStarted() will return false.
   // Fires NOTIFICATION_SESSION_STARTED.
   virtual void SessionStarted() = 0;
 
   // Removes the user from the device. Note, it will verify that the given user
   // isn't the owner, so calling this method for the owner will take no effect.
   // Note, |delegate| can be NULL.
@@ skipping 36 matching lines @@
   // Ignored If there is no such user.
   virtual void SaveUserDisplayEmail(const std::string& username,
                                     const std::string& display_email) = 0;
 
   // Returns the display email for user |username| if it is known (was
   // previously set by a |SaveUserDisplayEmail| call).
   // Otherwise, returns |username| itself.
   virtual std::string GetUserDisplayEmail(
       const std::string& username) const = 0;
 
-  // Sets |type| and |index| to the value saved in local state for logged in
-  // user.
-  virtual void GetLoggedInUserWallpaperProperties(User::WallpaperType* type,
-      int* index,
-      base::Time* last_modification_date) = 0;
-
   // Saves |type| and |index| chose by logged in user to Local State.
   virtual void SaveLoggedInUserWallpaperProperties(User::WallpaperType type,
                                                    int index) = 0;
 
   // Sets user image to the default image with index |image_index|, sends
   // LOGIN_USER_IMAGE_CHANGED notification and updates Local State.
   virtual void SaveUserDefaultImageIndex(const std::string& username,
                                          int image_index) = 0;
 
   // Saves image to file, sends LOGIN_USER_IMAGE_CHANGED notification and
   // updates Local State.
   virtual void SaveUserImage(const std::string& username,
                              const UserImage& user_image) = 0;
 
   // Updates custom wallpaper to selected layout and saves layout to Local
   // State.
   virtual void SetLoggedInUserCustomWallpaperLayout(
       ash::WallpaperLayout layout) = 0;
 
   // Tries to load user image from disk; if successful, sets it for the user,
   // sends LOGIN_USER_IMAGE_CHANGED notification and updates Local State.
   virtual void SaveUserImageFromFile(const std::string& username,
                                      const FilePath& path) = 0;
 
-  // Tries to load user image from disk; if successful, sets it for the user,
-  // and updates Local State.
-  virtual void SaveUserWallpaperFromFile(
-      const std::string& username,
-      const FilePath& path,
-      ash::WallpaperLayout layout,
-      base::WeakPtr<WallpaperDelegate> delegate) = 0;
-
   // Sets profile image as user image for |username|, sends
   // LOGIN_USER_IMAGE_CHANGED notification and updates Local State. If the user
   // is not logged-in or the last |DownloadProfileImage| call has failed, a
   // default grey avatar will be used until the user logs in and profile image
   // is downloaded successfully.
   virtual void SaveUserImageFromProfileImage(const std::string& username) = 0;
 
   // Starts downloading the profile image for the logged-in user.
   // If user's image index is |kProfileImageIndex|, newly downloaded image
   // is immediately set as user's current picture.
@@ skipping 33 matching lines @@
   virtual void NotifyLocalStateChanged() = 0;
 
   // Returns the result of the last successful profile image download, if any.
   // Otherwise, returns an empty bitmap.
   virtual const SkBitmap& DownloadedProfileImage() const = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_