Reset the app list when it is shown on Windows and Linux.

ui/app_list/views/apps_grid_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_VIEWS_APPS_GRID_VIEW_H_
 #define UI_APP_LIST_VIEWS_APPS_GRID_VIEW_H_
 
 #include <set>
 
 #include "base/basictypes.h"
@@ skipping 67 matching lines @@
                content::WebContents* start_page_contents);
   virtual ~AppsGridView();
 
   // Sets fixed layout parameters. After setting this, CalculateLayout below
   // is no longer called to dynamically choosing those layout params.
   void SetLayout(int icon_size, int cols, int rows_per_page);
 
   int cols() { return cols_; }
   int rows_per_page() { return rows_per_page_; }
 
+  void ResetForShow();

[tapted, 2014/03/28 07:39:15]

nit: add a comment. Perhaps a clearer name would be 'ResetForShowApps' too.

[jennyz, 2014/03/28 16:59:46]

+1.

[calamity, 2014/03/31 08:23:54]

Done.

+
   // Sets |model| to use. Note this does not take ownership of |model|.
   void SetModel(AppListModel* model);
 
   // Sets the |item_list| to render. Note this does not take ownership of
   // |item_list|.
   void SetItemList(AppListItemList* item_list);
 
   void SetSelectedView(views::View* view);
   void ClearSelectedView(views::View* view);
   void ClearAnySelectedView();
@@ skipping 428 matching lines @@
 
   // True if the drag_view_ item is a folder item being dragged for reparenting.
   bool dragging_for_reparent_item_;
 
   DISALLOW_COPY_AND_ASSIGN(AppsGridView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_APPS_GRID_VIEW_H_