Turn TaskManagerView Context Menu Async

chrome/browser/ui/views/task_manager_view.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_TASK_MANAGER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_TASK_MANAGER_VIEW_H_
 
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 68 matching lines @@
 
   // views::ContextMenuController:
   void ShowContextMenuForView(views::View* source,
                               const gfx::Point& point,
                               ui::MenuSourceType source_type) override;
 
   // ui::SimpleMenuModel::Delegate:
   bool IsCommandIdChecked(int id) const override;
   bool IsCommandIdEnabled(int id) const override;
   void ExecuteCommand(int id, int event_flags) override;
+  void MenuClosed(ui::SimpleMenuModel* source) override;
 
  private:
   friend class TaskManagerViewTest;
 
   TaskManagerView();
 
   static TaskManagerView* GetInstanceForTests();
 
   // Creates the child controls.
   void Init();
 
   // Initializes the state of the always-on-top setting as the window is shown.
   void InitAlwaysOnTopState();
 
   // Activates the tab associated with the selected row.
   void ActivateSelectedTab();
 
   // Selects the active tab in the specified browser window.
   void SelectTaskOfActiveTab(Browser* browser);
 
   // Restores saved "always on top" state from a previous session.
   void RetrieveSavedAlwaysOnTopState();
 
   std::unique_ptr<TaskManagerTableModel> table_model_;
 
+  std::unique_ptr<ui::SimpleMenuModel> menu_model_;
   std::unique_ptr<views::MenuRunner> menu_runner_;
 
   // We need to own the text of the menu, the Windows API does not copy it.
   base::string16 always_on_top_menu_text_;
 
   views::TableView* tab_table_;
   views::View* tab_table_parent_;
 
   // all possible columns, not necessarily visible
   std::vector<ui::TableColumn> columns_;
 
   // True when the Task Manager window should be shown on top of other windows.
   bool is_always_on_top_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerView);
 };
 
 }  // namespace task_manager
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TASK_MANAGER_VIEW_H_