Make cancelling of app list correctly clean up folder UI.

ui/app_list/views/app_list_folder_view.cc

Index: ui/app_list/views/app_list_folder_view.cc
diff --git a/ui/app_list/views/app_list_folder_view.cc b/ui/app_list/views/app_list_folder_view.cc
index 6116c949a4571db9441fc366536205b5d7929130..d51d67ff906724e622e51bf67fa319c08379723e 100644
--- a/ui/app_list/views/app_list_folder_view.cc
+++ b/ui/app_list/views/app_list_folder_view.cc
@@ -56,7 +56,7 @@ AppListFolderView::AppListFolderView(AppsContainerView* container_view,
 
   items_grid_view_ =
       new AppsGridView(app_list_main_view_, pagination_model_.get());
-  items_grid_view_->set_is_root_level(false);
+  items_grid_view_->set_folder_delegate(this);
   items_grid_view_->SetLayout(
       kPreferredIconDimension,
       container_view->apps_grid_view()->cols(),
@@ -226,7 +226,7 @@ void AppListFolderView::UpdateFolderNameVisibility(bool visible) {
   folder_header_view_->UpdateFolderNameVisibility(visible);
 }
 
-bool AppListFolderView::IsPointOutsideOfFolderBoundray(
+bool AppListFolderView::IsPointOutsideOfFolderBoundary(
     const gfx::Point& point) {
   if (!GetLocalBounds().Contains(point))
     return true;