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..a4e7ac597ee2f3530107f6df5389db971cb881ac 100644
--- a/chrome/browser/chromeos/login/wallpaper_manager.h
+++ b/chrome/browser/chromeos/login/wallpaper_manager.h
@@ -128,6 +128,13 @@ 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.
+  std::string ResizeWallpaper(const UserImage& wallpaper,
+                              ash::WallpaperLayout layout,
+                              int preferred_width,
+                              int preferred_height);
+
+  // 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 +212,9 @@ 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);