[cros] Profile image downloader is always reset after a download.

chrome/browser/chromeos/login/user_manager.h

 // Copyright (c) 2011 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_
 #pragma once
 
 #include <string>
 
@@ skipping 168 matching lines @@
   // Reads user's oauth token status from local state preferences.
   User::OAuthTokenStatus LoadUserOAuthStatus(const std::string& username) const;
 
   // Sets one of the default images for the specified user and saves this
   // setting in local state.
   // Does not send LOGIN_USER_IMAGE_CHANGED notification.
   void SetInitialUserImage(const std::string& username);
 
   // Sets image for user |username| and sends LOGIN_USER_IMAGE_CHANGED
   // notification unless this is a new user and image is set for the first time.
+  // If |image| is empty, sets a stub image for the user.
   void SetUserImage(const std::string& username,
                     int image_index,
                     const SkBitmap& image);
 
   // Saves image to file, updates local state preferences to given image index
   // and sends LOGIN_USER_IMAGE_CHANGED notification.
   void SaveUserImageInternal(const std::string& username,
                              int image_index,
                              const SkBitmap& image);
 
   // Saves image to file with specified path and sends LOGIN_USER_IMAGE_CHANGED
   // notification. Runs on FILE thread. Posts task for saving image info to
   // Local State on UI thread.
   void SaveImageToFile(const std::string& username,
                        const SkBitmap& image,
                        const FilePath& image_path,
                        int image_index);
 
   // Stores path to the image and its index in local state. Runs on UI thread.
   // If |is_async| is true, it has been posted from the FILE thread after
   // saving the image.
   void SaveImageToLocalState(const std::string& username,
                              const std::string& image_path,
                              int image_index,
                              bool is_async);
 
+  // Initializes |downloaded_profile_picture_| with the picture of the logged-in
+  // user.
+  void InitDownloadedProfileImage();
+
   // Deletes user's image file. Runs on FILE thread.
   void DeleteUserImage(const FilePath& image_path);
 
   // Updates current user ownership on UI thread.
   void UpdateOwnership(bool is_owner);
 
   // Checks current user's ownership on file thread.
   void CheckOwnership();
 
   // ProfileDownloaderDelegate implementation.
@@ skipping 62 matching lines @@
 
   // Data URL for |downloaded_profile_image_|.
   std::string downloaded_profile_image_data_url_;
 
   DISALLOW_COPY_AND_ASSIGN(UserManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_