mash: Partially migrate ash/desktop_background to ash common types.

ash/desktop_background/desktop_background_controller_test_api.cc

Index: ash/desktop_background/desktop_background_controller_test_api.cc
diff --git a/ash/desktop_background/desktop_background_controller_test_api.cc b/ash/desktop_background/desktop_background_controller_test_api.cc
deleted file mode 100644
index dcbdedf262af3d9e3a3e57e31962d6b455db9b02..0000000000000000000000000000000000000000
--- a/ash/desktop_background/desktop_background_controller_test_api.cc
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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 "ash/desktop_background/desktop_background_controller_test_api.h"
-
-namespace ash {
-
-DesktopBackgroundController::TestAPI::TestAPI(
-    DesktopBackgroundController* controller)
-    : controller_(controller) {}
-
-void DesktopBackgroundController::TestAPI::set_wallpaper_reload_delay_for_test(
-    bool value) {
-  controller_->set_wallpaper_reload_delay_for_test(value);
-}
-
-}  // namespace ash