Remove ash_util namespace

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

 // 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.
 
 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
 
 #include <utility>
 
 #include "ash/common/ash_constants.h"
 #include "ash/common/wallpaper/wallpaper_controller.h"
@@ skipping 180 matching lines @@
 void SetKnownUserWallpaperFilesId(
     const AccountId& account_id,
     const wallpaper::WallpaperFilesId& wallpaper_files_id) {
   user_manager::known_user::SetStringPref(account_id, kWallpaperFilesId,
                                           wallpaper_files_id.id());
 }
 
 // A helper to set the wallpaper image for Classic Ash and Mash.
 void SetWallpaper(const gfx::ImageSkia& image,
                   wallpaper::WallpaperLayout layout) {
-  if (ash_util::IsRunningInMash()) {
+  if (IsRunningInMash()) {
     // In mash, connect to the WallpaperController interface via mojo.
     service_manager::Connector* connector =
         content::ServiceManagerConnection::GetForProcess()->GetConnector();
     if (!connector)
       return;
 
     ash::mojom::WallpaperControllerPtr wallpaper_controller;
     connector->BindInterface(ash::mojom::kServiceName, &wallpaper_controller);
     // TODO(crbug.com/655875): Optimize ash wallpaper transport; avoid sending
     // large bitmaps over Mojo; use shared memory like BitmapUploader, etc.
@@ skipping 1195 matching lines @@
 
   UMA_HISTOGRAM_ENUMERATION(
       "Ash.Wallpaper.Apps",
       wallpaper_manager_util::ShouldUseAndroidWallpapersApp(profile)
           ? WALLPAPERS_APP_ANDROID
           : WALLPAPERS_PICKER_APP_CHROMEOS,
       WALLPAPERS_APPS_NUM);
 }
 
 }  // namespace chromeos