mash: Move shelf model and item classes to ash/common/shelf

ash/common/shelf/shelf_item_delegate_manager.cc

 // 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.
 
-#include "ash/shelf/shelf_item_delegate_manager.h"
+#include "ash/common/shelf/shelf_item_delegate_manager.h"
 
-#include "ash/shelf/shelf_item_delegate.h"
-#include "ash/shelf/shelf_model.h"
-#include "ash/shell.h"
+#include "ash/common/shelf/shelf_item_delegate.h"
+#include "ash/common/shelf/shelf_model.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 
 namespace ash {
 
 ShelfItemDelegateManager::ShelfItemDelegateManager(ShelfModel* model)
     : model_(model) {
   DCHECK(model_);
   model_->AddObserver(this);
 }
@@ skipping 54 matching lines @@
                                                 const ShelfItem& old_item) {}
 
 void ShelfItemDelegateManager::RemoveShelfItemDelegate(ShelfID id) {
   if (id_to_item_delegate_map_.find(id) != id_to_item_delegate_map_.end()) {
     delete id_to_item_delegate_map_[id];
     id_to_item_delegate_map_.erase(id);
   }
 }
 
 }  // namespace ash