Move ownership of the AppListViewDelegate into the AppListService

ash/wm/app_list_controller.cc

Index: ash/wm/app_list_controller.cc
diff --git a/ash/wm/app_list_controller.cc b/ash/wm/app_list_controller.cc
index 515930507524e271db77b1229ca0f4c2a70ea10a..382ad107a4803778194cd666e7823a2136f2b0ad 100644
--- a/ash/wm/app_list_controller.cc
+++ b/ash/wm/app_list_controller.cc
@@ -187,10 +187,10 @@ void AppListController::Show(aura::Window* window) {
   if (view_) {
     ScheduleAnimation();
   } else {
-    // AppListModel and AppListViewDelegate are owned by AppListView. They
-    // will be released with AppListView on close.
+    // Note the AppListViewDelegate outlives the AppListView. For Ash, the view
+    // is destroyed when dismissed.
     app_list::AppListView* view = new app_list::AppListView(
-        Shell::GetInstance()->delegate()->CreateAppListViewDelegate());
+        Shell::GetInstance()->delegate()->GetAppListViewDelegate());
     aura::Window* root_window = window->GetRootWindow();
     aura::Window* container = GetRootWindowController(root_window)->
         GetContainer(kShellWindowId_AppListContainer);