chromeos: Move files in //ash/common to //ash, part 2

ash/shelf/shelf_item_delegate.cc

 // Copyright 2017 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/common/shelf/shelf_item_delegate.h"
+#include "ash/shelf/shelf_item_delegate.h"
 
 #include "ui/display/types/display_constants.h"
 
 namespace ash {
 
 ShelfItemDelegate::ShelfItemDelegate() {}
 ShelfItemDelegate::~ShelfItemDelegate() {}
 
 ShelfAction ShelfItemDelegate::ItemSelectedBySource(ShelfLaunchSource source) {
   return ItemSelected(ui::ET_UNKNOWN, ui::EF_NONE, display::kInvalidDisplayId,
                       source);
 }
 
 }  // namespace ash