Standardize usage of virtual/override/final specifiers.

ui/views/examples/menu_example.cc

 // Copyright (c) 2012 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/views/examples/menu_example.h"
 
 #include <set>
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/base/models/simple_menu_model.h"
@@ skipping 10 matching lines @@
 namespace examples {
 
 namespace {
 
 class ExampleMenuModel : public ui::SimpleMenuModel,
                          public ui::SimpleMenuModel::Delegate {
  public:
   ExampleMenuModel();
 
   // ui::SimpleMenuModel::Delegate:
-  virtual bool IsCommandIdChecked(int command_id) const override;
-  virtual bool IsCommandIdEnabled(int command_id) const override;
-  virtual bool GetAcceleratorForCommandId(
-      int command_id,
-      ui::Accelerator* accelerator) override;
-  virtual void ExecuteCommand(int command_id, int event_flags) override;
+  bool IsCommandIdChecked(int command_id) const override;
+  bool IsCommandIdEnabled(int command_id) const override;
+  bool GetAcceleratorForCommandId(int command_id,
+                                  ui::Accelerator* accelerator) override;
+  void ExecuteCommand(int command_id, int event_flags) override;
 
  private:
   enum GroupID {
     GROUP_MAKE_DECISION,
   };
 
   enum CommandID {
     COMMAND_DO_SOMETHING,
     COMMAND_SELECT_ASCII,
     COMMAND_SELECT_UTF8,
     COMMAND_SELECT_UTF16,
     COMMAND_CHECK_APPLE,
     COMMAND_CHECK_ORANGE,
     COMMAND_CHECK_KIWI,
     COMMAND_GO_HOME,
   };
 
   scoped_ptr<ui::SimpleMenuModel> submenu_;
   std::set<int> checked_fruits_;
   int current_encoding_command_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ExampleMenuModel);
 };
 
 class ExampleMenuButton : public MenuButton, public MenuButtonListener {
  public:
   explicit ExampleMenuButton(const base::string16& test);
-  virtual ~ExampleMenuButton();
+  ~ExampleMenuButton() override;
 
  private:
   // MenuButtonListener:
-  virtual void OnMenuButtonClicked(View* source,
-                                   const gfx::Point& point) override;
+  void OnMenuButtonClicked(View* source, const gfx::Point& point) override;
 
   ui::SimpleMenuModel* GetMenuModel();
 
   scoped_ptr<ExampleMenuModel> menu_model_;
   scoped_ptr<MenuRunner> menu_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ExampleMenuButton);
 };
 
 // ExampleMenuModel ---------------------------------------------------------
@@ skipping 136 matching lines @@
 void MenuExample::CreateExampleView(View* container) {
   // We add a button to open a menu.
   ExampleMenuButton* menu_button = new ExampleMenuButton(
       ASCIIToUTF16("Open a menu"));
   container->SetLayoutManager(new FillLayout);
   container->AddChildView(menu_button);
 }
 
 }  // namespace examples
 }  // namespace views