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

ui/app_list/views/apps_container_view.h

Index: ui/app_list/views/apps_container_view.h
diff --git a/ui/app_list/views/apps_container_view.h b/ui/app_list/views/apps_container_view.h
index 7b23f8fe5ec7cd4da02e200052565c2ace6a993b..5223caa0f64e54d4119e531bc3e0de4c77ba5792 100644
--- a/ui/app_list/views/apps_container_view.h
+++ b/ui/app_list/views/apps_container_view.h
@@ -19,6 +19,7 @@ class AppsGridView;
 class ApplicationDragAndDropHost;
 class AppListFolderItem;
 class AppListFolderView;
+class AppListItemView;

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

nit: this doesn't look needed any more

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

Done.

 class AppListMainView;
 class AppListModel;
 class ContentsView;
@@ -44,6 +45,8 @@ class AppsContainerView : public views::View,
   // a folder view with |folder_item|. If |folder_item| is NULL skips animation.
   void ShowApps(AppListFolderItem* folder_item);
 
+  void ResetForShow();

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

nit: add a comment

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

Better name should be like tapted suggested: ResetForShowApps, please comment
this should be called when user open launcher for the first time, or close and
reopen it, since we only hide/show on windows, it reset the state to fresh.

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

Done.

+
   // Sets |drag_and_drop_host_| for the current app list in both
   // app_list_folder_view_ and root level apps_grid_view_.
   void SetDragAndDropHostOfCurrentAppList(