Rename Launcher to Shelf.

ash/test/launcher_test_api.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 ASH_TEST_LAUNCHER_TEST_API_H_
-#define ASH_TEST_LAUNCHER_TEST_API_H_
-
-#include "base/basictypes.h"
-
-namespace ash {
-
-class Launcher;
-class ShelfDelegate;
-
-namespace internal {
-class ShelfView;
-}
-
-namespace test {
-
-// Use the api in this class to access private members of Launcher.
-class LauncherTestAPI {
- public:
-  explicit LauncherTestAPI(Launcher* launcher);
-
-  ~LauncherTestAPI();
-
-  // An accessor for |shelf_view|.
-  internal::ShelfView* shelf_view();
-
-  // Set ShelfDelegate.
-  void SetShelfDelegate(ShelfDelegate* delegate);
-
- private:
-  Launcher* launcher_;
-
-  DISALLOW_COPY_AND_ASSIGN(LauncherTestAPI);
-};
-
-}  // namespace test
-}  // namespace ash
-
-#endif  // ASH_TEST_LAUNCHER_TEST_API_H_