New custom wallpaper picker UI

chrome/browser/chromeos/login/wallpaper_manager.h

Index: chrome/browser/chromeos/login/wallpaper_manager.h
diff --git a/chrome/browser/chromeos/login/wallpaper_manager.h b/chrome/browser/chromeos/login/wallpaper_manager.h
index c7b75c755dddab583d6878f2a0270b7c16eaca01..882bcc479db16f7bc0130fc4670a926c6e52a01d 100644
--- a/chrome/browser/chromeos/login/wallpaper_manager.h
+++ b/chrome/browser/chromeos/login/wallpaper_manager.h
@@ -128,6 +128,14 @@ class WallpaperManager: public system::TimezoneSettings::Observer,
   void RemoveUserWallpaperInfo(const std::string& email);
 
   // Resizes |wallpaper| to a resolution which is nearest to |preferred_width|
+  // and |preferred_height| while maintaining aspect ratio.
+  bool ResizeWallpaper(const UserImage& wallpaper,
+                       ash::WallpaperLayout layout,
+                       int preferred_width,
+                       int preferred_height,
+                       scoped_refptr<base::RefCountedBytes>* output);
+
+  // Resizes |wallpaper| to a resolution which is nearest to |preferred_width|
   // and |preferred_height| while maintaining aspect ratio. And saves the
   // resized wallpaper to |path|.
   void ResizeAndSaveWallpaper(const UserImage& wallpaper,
@@ -205,6 +213,9 @@ class WallpaperManager: public system::TimezoneSettings::Observer,
   // Clears all obsolete wallpaper prefs from old version wallpaper pickers.
   void ClearObsoleteWallpaperPrefs();
 
+  // Deletes everything else except |path| in the same directory.
+  void DeleteAllExcept(const base::FilePath& path);
+
   // Deletes a list of wallpaper files in |file_list|.
   void DeleteWallpaperInList(const std::vector<base::FilePath>& file_list);