MacViews: Fix non-aura app list compile

ui/app_list/views/app_list_view.cc

Index: ui/app_list/views/app_list_view.cc
diff --git a/ui/app_list/views/app_list_view.cc b/ui/app_list/views/app_list_view.cc
index 7974b6b67dc774d9753f612372b46ec0665364fc..e2d3e095d7634c6cfb9b4c98a322f152a5cf627c 100644
--- a/ui/app_list/views/app_list_view.cc
+++ b/ui/app_list/views/app_list_view.cc
@@ -500,8 +500,7 @@ void AppListView::InitAsBubbleInternal(gfx::NativeView parent,
       new views::BubbleWindowTargeter(this)));
 #else
   set_background(new AppListBackground(
-      GetBubbleFrameView()->bubble_border()->GetBorderCornerRadius(),
-      app_list_main_view_));
+      GetBubbleFrameView()->bubble_border()->GetBorderCornerRadius()));
 
   // On non-aura the bubble has two widgets, and it's possible for the border
   // to be shown independently in odd situations. Explicitly hide the bubble