Cleanup mojo Wallpaper interfaces for mash.

chrome/browser/ui/webui/settings/appearance_handler.cc

 // Copyright (c) 2015 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/ui/webui/settings/appearance_handler.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "content/public/browser/web_ui.h"
 
 #if defined(OS_CHROMEOS)
-#include "ash/common/wallpaper/wallpaper_delegate.h"  // nogncheck
-#include "ash/common/wm_shell.h"  // nogncheck
+#include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
 #endif
 
 namespace settings {
 
 AppearanceHandler::AppearanceHandler(content::WebUI* webui)
     : profile_(Profile::FromWebUI(webui)) {
 }
 
 AppearanceHandler::~AppearanceHandler() {}
 
@@ skipping 28 matching lines @@
   if (profile_->IsSupervised())
     NOTREACHED();
   else
     ThemeServiceFactory::GetForProfile(profile_)->UseSystemTheme();
 }
 #endif
 
 #if defined(OS_CHROMEOS)
 void AppearanceHandler::HandleOpenWallpaperManager(
     const base::ListValue* /*args*/) {
-  ash::WmShell::Get()->wallpaper_delegate()->OpenSetWallpaperPage();
+  chromeos::WallpaperManager::Get()->Open();
 }
 #endif
 
 }  // namespace settings