mash: Convert ShelfView to wm common types, clean up Shelf access

ash/shelf/shelf_widget_unittest.cc

 // Copyright (c) 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.
 
 #include "ash/shelf/shelf_widget.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/shelf/shelf_delegate.h"
+#include "ash/common/shelf/shelf_view.h"
 #include "ash/common/system/status_area_widget.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_layout_manager.h"
-#include "ash/shelf/shelf_view.h"
 #include "ash/shell.h"
 #include "ash/test/ash_md_test_base.h"
 #include "ash/test/ash_test_helper.h"
 #include "ash/test/shelf_test_api.h"
 #include "ash/test/shelf_view_test_api.h"
 #include "ash/test/test_shell_delegate.h"
 #include "ash/wm/window_util.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
@@ skipping 455 matching lines @@
 }
 
 TEST_P(ShelfWidgetTestWithDelegate, CreateLockedShelf) {
   // The auto hide state 'HIDDEN' is returned for any non-auto-hide behavior.
   TestCreateShelfWithInitialValues(SHELF_ALIGNMENT_BOTTOM_LOCKED,
                                    SHELF_AUTO_HIDE_BEHAVIOR_NEVER,
                                    SHELF_VISIBLE, SHELF_AUTO_HIDE_HIDDEN);
 }
 
 }  // namespace ash