ash: Rename LauncherModel to ShelfModel.

ash/shelf/shelf_model.h

 // Copyright (c) 2012 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_LAUNCHER_LAUNCHER_MODEL_H_
-#define ASH_LAUNCHER_LAUNCHER_MODEL_H_
+#ifndef ASH_SHELF_SHELF_MODEL_H_
+#define ASH_SHELF_SHELF_MODEL_H_
 
 #include "ash/ash_export.h"
 #include "ash/launcher/launcher_types.h"
 #include "base/basictypes.h"
 #include "base/observer_list.h"
 
 namespace ash {
 
 class ShelfModelObserver;
 
 // Model used by ShelfView.
-class ASH_EXPORT LauncherModel {
+class ASH_EXPORT ShelfModel {
  public:
   enum Status {
     STATUS_NORMAL,
     // A status that indicates apps are syncing/loading.
     STATUS_LOADING,
   };
 
-  LauncherModel();
-  ~LauncherModel();
+  ShelfModel();
+  ~ShelfModel();
 
   // Adds a new item to the model. Returns the resulting index.
   int Add(const LauncherItem& item);
 
   // Adds the item. |index| is the requested insertion index, which may be
   // modified to meet type-based ordering. Returns the actual insertion index.
   int AddAt(int index, const LauncherItem& item);
 
   // Removes the item at |index|.
   void RemoveItemAt(int index);
 
   // Moves the item at |index| to |target_index|. |target_index| is in terms
   // of the model *after* the item at |index| is removed.
   void Move(int index, int target_index);
 
   // Resets the item at the specified index. The item maintains its existing
   // id and type.
   void Set(int index, const LauncherItem& item);
 
   // Returns the index of the item by id.
   int ItemIndexByID(LauncherID id) const;
 
   // Returns the index of the first panel or the index where the first panel
   // would go if there are no panels.
   int FirstPanelIndex() const;
 
   // Returns the id assigned to the next item added.
   LauncherID next_id() const { return next_id_; }
 
-  // Returns a reserved id which will not be used by the |LauncherModel|.
+  // Returns a reserved id which will not be used by the |ShelfModel|.
   LauncherID reserve_external_id() { return next_id_++; }
 
   // Returns an iterator into items() for the item with the specified id, or
   // items().end() if there is no item with the specified id.
   LauncherItems::const_iterator ItemByID(LauncherID id) const;
 
   const LauncherItems& items() const { return items_; }
   int item_count() const { return static_cast<int>(items_.size()); }
 
   void SetStatus(Status status);
   Status status() const { return status_; }
 
   void AddObserver(ShelfModelObserver* observer);
   void RemoveObserver(ShelfModelObserver* observer);
 
  private:
   // Makes sure |index| is in line with the type-based order of items. If that
   // is not the case, adjusts index by shifting it to the valid range and
   // returns the new value.
   int ValidateInsertionIndex(LauncherItemType type, int index) const;
 
   // ID assigned to the next item.
   LauncherID next_id_;
 
   LauncherItems items_;
   Status status_;
   ObserverList<ShelfModelObserver> observers_;
 
-  DISALLOW_COPY_AND_ASSIGN(LauncherModel);
+  DISALLOW_COPY_AND_ASSIGN(ShelfModel);
 };
 
 }  // namespace ash
 
-#endif  // ASH_LAUNCHER_LAUNCHER_MODEL_H_
+#endif  // ASH_SHELF_SHELF_MODEL_H_