Add Ash.Wallpaper.{DefaultIndex,Type} to histograms.xml.

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 <deque>
 #include <string>
 #include <vector>
@@ skipping 344 matching lines @@
  private:
   friend class TestApi;
   friend class PendingWallpaper;
   friend class WallpaperManagerBrowserTest;
   friend class WallpaperManagerBrowserTestDefaultWallpaper;
   friend class WallpaperManagerPolicyTest;
 
   typedef std::map<std::string, gfx::ImageSkia> CustomWallpaperMap;
 
 
-  // Record data for User Metrics Analysis.
-  static void RecordUma(user_manager::User::WallpaperType type, int index);
-
   // Saves original custom wallpaper to |path| (absolute path) on filesystem
   // and starts resizing operation of the custom wallpaper if necessary.
   static void SaveCustomWallpaper(const std::string& user_id_hash,
                                   const base::FilePath& path,
                                   ash::WallpaperLayout layout,
                                   scoped_ptr<gfx::ImageSkia> image);
 
   // Moves custom wallpapers from |user_id| directory to |user_id_hash|
   // directory.
   static void MoveCustomWallpapersOnWorker(
@@ skipping 247 matching lines @@
 
   // Current decoded default image is stored in cache.
   scoped_ptr<user_manager::UserImage> default_wallpaper_image_;
 
   DISALLOW_COPY_AND_ASSIGN(WallpaperManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_H_