Add new DialogDelegate for dialogs in the App List

chrome/browser/ui/ash/app_list/app_list_controller_ash.cc

Index: chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
diff --git a/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc b/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
index 1b642faddfab0d796c048518f7a48902a6ef7187..e0b0c45cfdd4f09759cae07177a0e8f58f3518b3 100644
--- a/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
+++ b/chrome/browser/ui/ash/app_list/app_list_controller_ash.cc
@@ -55,20 +55,6 @@ AppListControllerDelegate::Pinnable
       PIN_FIXED;
 }
 
-void AppListControllerDelegateAsh::OnShowChildDialog() {
-  app_list::AppListView* app_list_view =
-      ash::Shell::GetInstance()->GetAppListView();
-  if (app_list_view)
-    app_list_view->SetAppListOverlayVisible(true);
-}
-
-void AppListControllerDelegateAsh::OnCloseChildDialog() {
-  app_list::AppListView* app_list_view =
-      ash::Shell::GetInstance()->GetAppListView();
-  if (app_list_view)
-    app_list_view->SetAppListOverlayVisible(false);
-}
-
 bool AppListControllerDelegateAsh::CanDoCreateShortcutsFlow() {
   return false;
 }