app_list: Add transition for apps grid and search results.

ui/app_list/app_list_view.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 UI_APP_LIST_APP_LIST_VIEW_H_
 #define UI_APP_LIST_APP_LIST_VIEW_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/app_list/app_list_export.h"
 #include "ui/app_list/search_box_view_delegate.h"
 #include "ui/app_list/search_result_list_view_delegate.h"
 #include "ui/views/bubble/bubble_delegate.h"
 #include "ui/views/controls/button/button.h"
 
-namespace views {
-class View;
-}
-
 namespace app_list {
 
 class AppListBubbleBorder;
 class AppListModel;
-class AppsGridView;
 class AppListViewDelegate;
-class PageSwitcher;
+class ContentsView;
 class PaginationModel;
 class SearchBoxView;
-class SearchResultListView;
 
 // AppListView is the top-level view and controller of app list UI. It creates
 // and hosts a AppsGridView and passes AppListModel to it for display.
 class APP_LIST_EXPORT AppListView : public views::BubbleDelegateView,
                                     public views::ButtonListener,
                                     public SearchBoxViewDelegate,
                                     public SearchResultListViewDelegate {
  public:
   // Takes ownership of |delegate|.
   explicit AppListView(AppListViewDelegate* delegate);
@@ skipping 12 matching lines @@
   void UpdateBounds();
 
  private:
   // Creates models to use.
   void CreateModel();
 
   // Overridden from views::WidgetDelegateView:
   virtual views::View* GetInitiallyFocusedView() OVERRIDE;
 
   // Overridden from views::View:
-  virtual gfx::Size GetPreferredSize() OVERRIDE;
-  virtual void Layout() OVERRIDE;
   virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
 
   // Overridden from views::ButtonListener:
   virtual void ButtonPressed(views::Button* sender,
                              const views::Event& event) OVERRIDE;
 
   // Overridden from views::BubbleDelegate:
   virtual gfx::Rect GetBubbleBounds() OVERRIDE;
 
   // Overridden from SearchBoxViewDelegate:
   virtual void QueryChanged(SearchBoxView* sender) OVERRIDE;
 
   // Overridden from SearchResultListViewDelegate:
   virtual void OpenResult(const SearchResult& result,
                           int event_flags) OVERRIDE;
 
   scoped_ptr<AppListModel> model_;
   scoped_ptr<AppListViewDelegate> delegate_;
 
-  // PaginationModel for model view and page switcher.
+  // PaginationModel for apps grid view and page switcher.
   scoped_ptr<PaginationModel> pagination_model_;
 
   AppListBubbleBorder* bubble_border_;  // Owned by views hierarchy.
-
-  AppsGridView* apps_grid_view_;  // Owned by views hierarchy.
-  PageSwitcher* page_switcher_view_;  // Owned by views hierarchy.
   SearchBoxView* search_box_view_;  // Owned by views hierarchy.
-  SearchResultListView* search_results_view_;  // Owned by views hierarchy.
+  ContentsView* contents_view_;  // Owned by views hierarchy.
 
   DISALLOW_COPY_AND_ASSIGN(AppListView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_APP_LIST_VIEW_H_