Update SetPaintToLayer to accept LayerType

ui/app_list/views/app_list_main_view_unittest.cc

Index: ui/app_list/views/app_list_main_view_unittest.cc
diff --git a/ui/app_list/views/app_list_main_view_unittest.cc b/ui/app_list/views/app_list_main_view_unittest.cc
index dcb7103acec77d2082888293968c372f9704e8c1..e36a14e2f21de541d698f0bcd98ce262ed197e10 100644
--- a/ui/app_list/views/app_list_main_view_unittest.cc
+++ b/ui/app_list/views/app_list_main_view_unittest.cc
@@ -86,7 +86,7 @@ class AppListMainViewTest : public views::ViewsTestBase {
     // NULL on Windows, and not needed for tests. It is only used to determine
     // the scale factor for preloading icons.
     main_view_ = new AppListMainView(delegate_.get());
-    main_view_->SetPaintToLayer(true);
+    main_view_->SetPaintToLayer();
     main_view_->model()->SetFoldersEnabled(true);
     search_box_view_ = new SearchBoxView(main_view_, delegate_.get());
     main_view_->Init(nullptr, 0, search_box_view_);