aura: Implement app list M19 mock.

ash/app_list/app_list_item_view.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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_APP_LIST_APP_LIST_ITEM_VIEW_H_
 #define ASH_APP_LIST_APP_LIST_ITEM_VIEW_H_
 #pragma once
 
 #include "ash/app_list/app_list_item_model_observer.h"
 #include "ash/ash_export.h"
-#include "ui/views/view.h"
+#include "ui/views/controls/button/custom_button.h"
 
 class SkBitmap;
 
 namespace views {
 class ImageView;
 class Label;
 }
 
 namespace ash {
 
 class AppListItemModel;
-class AppListItemViewListener;
 
-class ASH_EXPORT AppListItemView : public views::View,
-                                          public AppListItemModelObserver {
+class ASH_EXPORT AppListItemView : public views::CustomButton,
+                                   public AppListItemModelObserver {
  public:
   AppListItemView(AppListItemModel* model,
-                  AppListItemViewListener* listener);
+                  views::ButtonListener* listener);
   virtual ~AppListItemView();
 
   AppListItemModel* model() const {
     return model_;
   }
 
-  // Tile size
-  static const int kTileSize = 180;
-
-  // Preferred icon size.
-  static const int kIconSize = 128;
+  // Icon padding
+  static const int kPadding = 5;
 
  protected:
-  // Notifies listener when activated.
-  void NotifyActivated(int event_flags);
-
   // AppListItemModelObserver overrides:
   virtual void ItemIconChanged() OVERRIDE;
   virtual void ItemTitleChanged() OVERRIDE;
 
   // views::View overrides:
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
-  virtual void OnFocus() OVERRIDE;
-  virtual void OnBlur() OVERRIDE;
-  virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
-  virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
-  virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
-  virtual void OnPaintFocusBorder(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
 
  private:
   AppListItemModel* model_;
-  AppListItemViewListener* listener_;
 
   views::ImageView* icon_;
   views::Label* title_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListItemView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_APP_LIST_APP_LIST_ITEM_VIEW_H_