[ash-md] WIP Added wallpaper color caching.

chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h

 // Copyright 2014 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_USERS_WALLPAPER_WALLPAPER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "ash/public/interfaces/wallpaper.mojom.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/customization/customization_wallpaper_downloader.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "components/user_manager/user.h"
 #include "components/user_manager/user_image/user_image.h"
 #include "components/user_manager/user_manager.h"
 #include "components/wallpaper/wallpaper_layout.h"
 #include "components/wallpaper/wallpaper_manager_base.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "ui/gfx/image/image_skia.h"
 
+namespace wallpaper {
+class WallpaperColorCache;
+}  // namespace wallpaper
+
 namespace chromeos {
 
 class WallpaperManager
     : public wallpaper::WallpaperManagerBase,
       public ash::mojom::WallpaperPicker,
       public content::NotificationObserver,
       public user_manager::UserManager::UserSessionStateObserver {
  public:
   class PendingWallpaper;
 
@@ skipping 148 matching lines @@
       const wallpaper::WallpaperLayout layout,
       wallpaper::MovableOnDestroyCallbackHolder on_finish,
       std::unique_ptr<user_manager::UserImage>* result_out) override;
   void SetDefaultWallpaperPath(
       const base::FilePath& customized_default_wallpaper_file_small,
       std::unique_ptr<gfx::ImageSkia> small_wallpaper_image,
       const base::FilePath& customized_default_wallpaper_file_large,
       std::unique_ptr<gfx::ImageSkia> large_wallpaper_image) override;
   void RecordWallpaperAppType() override;
 
+  // void Foobar();
+
   mojo::Binding<ash::mojom::WallpaperPicker> binding_;
 
   std::unique_ptr<CrosSettings::ObserverSubscription>
       show_user_name_on_signin_subscription_;
 
   std::unique_ptr<CrosSettings::ObserverSubscription>
       device_wallpaper_image_subscription_;
   std::unique_ptr<CustomizationWallpaperDownloader>
       device_wallpaper_downloader_;
   bool retry_download_if_failed_ = true;
 
   // Pointer to last inactive (waiting) entry of 'loading_' list.
   // NULL when there is no inactive request.
   PendingWallpaper* pending_inactive_;
 
   // Owns PendingWallpaper.
   // PendingWallpaper deletes itself from here on load complete.
   // All pending will be finally deleted on destroy.
   typedef std::vector<scoped_refptr<PendingWallpaper>> PendingList;
   PendingList loading_;
 
   content::NotificationRegistrar registrar_;
 
+  std::unique_ptr<wallpaper::WallpaperColorCache> wallpaper_color_cache_;
+
   base::WeakPtrFactory<WallpaperManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WallpaperManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_H_