Apply default wallpaper from customization manifest.

chrome/browser/chromeos/login/user_image.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_IMAGE_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_H_
 
+#include <string>
 #include <vector>
 
 #include "ui/gfx/image/image_skia.h"
 #include "url/gurl.h"
 
 namespace chromeos {
 
 // Wrapper class storing a still image and it's raw representation.  Could be
 // used for storing profile images (including animated profile images) and user
 // wallpapers.
@@ skipping 36 matching lines @@
 
   // URL from which this image was originally downloaded, if any.
   void set_url(const GURL& url) { url_ = url; }
   GURL url() const { return url_; }
 
   // Whether |raw_image| contains data in format that is considered safe to
   // decode in sensitive environment (on Login screen).
   bool is_safe_format() const { return is_safe_format_; }
   void MarkAsSafe();
 
+  const std::string& file_path() const { return file_path_; }
+  void set_file_path(const std::string& file_path) { file_path_ = file_path; }
+
  private:
   gfx::ImageSkia image_;
   bool has_raw_image_;
   RawImage raw_image_;
   bool has_animated_image_;
   RawImage animated_image_;
   GURL url_;
+
+  // If image was loaded from the local file, file path is stored here.
+  std::string file_path_;
   bool is_safe_format_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_IMAGE_H_