Mac: Give app_shim code a nicer home

apps/app_shim/test/app_shim_host_manager_test_api_mac.h

-// Copyright 2013 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 APPS_APP_SHIM_TEST_APP_SHIM_HOST_MANAGER_TEST_API_MAC_H
-#define APPS_APP_SHIM_TEST_APP_SHIM_HOST_MANAGER_TEST_API_MAC_H
-
-#include "base/basictypes.h"
-
-class AppShimHostManager;
-
-namespace base {
-class FilePath;
-}
-
-namespace apps {
-class UnixDomainSocketAcceptor;
-}
-
-namespace test {
-
-class AppShimHostManagerTestApi {
- public:
-  explicit AppShimHostManagerTestApi(AppShimHostManager* host_manager);
-
-  apps::UnixDomainSocketAcceptor* acceptor();
-
-  const base::FilePath& directory_in_tmp();
-
- private:
-  AppShimHostManager* host_manager_;  // Not owned.
-
-  DISALLOW_COPY_AND_ASSIGN(AppShimHostManagerTestApi);
-};
-
-}  // namespace test
-
-#endif  // APPS_APP_SHIM_TEST_APP_SHIM_HOST_MANAGER_TEST_API_MAC_H