New custom wallpaper picker UI

chrome/browser/chromeos/extensions/wallpaper_private_api.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_EXTENSIONS_WALLPAPER_PRIVATE_API_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_
 
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/chromeos/login/user.h"
@@ skipping 139 matching lines @@
 
  private:
   virtual void OnWallpaperDecoded(const gfx::ImageSkia& wallpaper) OVERRIDE;
 
   // Generates thumbnail of custom wallpaper. A simple STRETCH is used for
   // generating thunbail.
   void GenerateThumbnail(const base::FilePath& thumbnail_path,
                          scoped_ptr<gfx::ImageSkia> image);
 
   // Thumbnail is ready. Calls api function javascript callback.
-  void ThumbnailGenerated(const std::string& file_name);
+  void ThumbnailGenerated(base::RefCountedBytes* data);
 
   // Layout of the downloaded wallpaper.
   ash::WallpaperLayout layout_;
 
+  // True if need to generate thumbnail and pass to callback.
+  bool generate_thumbnail_;
+
+  // Unique file name of the custom wallpaper.
+  std::string file_name_;
+
   // Email address of logged in user.
   std::string email_;
 
   // String representation of downloaded wallpaper.
   std::string image_data_;
 
   // Sequence token associated with wallpaper operations. Shared with
   // WallpaperManager.
   base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
@@ skipping 124 matching lines @@
   // Sends the list of files to extension api caller. If no files or no
   // directory, sends empty list.
   void OnComplete(const std::vector<std::string>& file_list);
 
   // Sequence token associated with wallpaper operations. Shared with
   // WallpaperManager.
   base::SequencedWorkerPool::SequenceToken sequence_token_;
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_WALLPAPER_PRIVATE_API_H_