Turn AppList context menus Async

ui/app_list/views/search_result_tile_item_view.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/app_list/views/search_result_tile_item_view.h"
 
 #include "ui/app_list/app_list_view_delegate.h"
 #include "ui/app_list/search_result.h"
 #include "ui/app_list/views/search_result_container_view.h"
 #include "ui/views/controls/menu/menu_runner.h"
@@ skipping 82 matching lines @@
   if (!item_)
     return;
 
   ui::MenuModel* menu_model = item_->GetContextMenuModel();
   if (!menu_model)
     return;
 
   if (!selected())
     result_container_->ClearSelectedIndex();
 
-  context_menu_runner_.reset(
-      new views::MenuRunner(menu_model, views::MenuRunner::HAS_MNEMONICS));
-  // If RunMenuAt() fails, return immediately. This is future-proofing for
-  // adding code after this call.
-  if (context_menu_runner_->RunMenuAt(
-          GetWidget(), nullptr, gfx::Rect(point, gfx::Size()),
-          views::MENU_ANCHOR_TOPLEFT,
-          source_type) == views::MenuRunner::MENU_DELETED)
-    return;
+  context_menu_runner_.reset(new views::MenuRunner(
+      menu_model, views::MenuRunner::HAS_MNEMONICS | views::MenuRunner::ASYNC));
+  context_menu_runner_->RunMenuAt(GetWidget(), nullptr,
+                                  gfx::Rect(point, gfx::Size()),
+                                  views::MENU_ANCHOR_TOPLEFT, source_type);
 }
 
 }  // namespace app_list