Standardize usage of virtual/override/final specifiers.

ash/shell/window_type_launcher.h

Index: ash/shell/window_type_launcher.h
diff --git a/ash/shell/window_type_launcher.h b/ash/shell/window_type_launcher.h
index da6575afcac2ff808302458db8baae67e95abd15..d0560f04fe5a26b8f38296275a937c9ad165090a 100644
--- a/ash/shell/window_type_launcher.h
+++ b/ash/shell/window_type_launcher.h
@@ -26,7 +26,7 @@ class WindowTypeLauncher : public views::WidgetDelegateView,
                            public views::ContextMenuController {
  public:
   WindowTypeLauncher();
-  virtual ~WindowTypeLauncher();
+  ~WindowTypeLauncher() override;
 
  private:
   typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
@@ -37,27 +37,26 @@ class WindowTypeLauncher : public views::WidgetDelegateView,
   };
 
   // Overridden from views::View:
-  virtual void OnPaint(gfx::Canvas* canvas) override;
-  virtual bool OnMousePressed(const ui::MouseEvent& event) override;
+  void OnPaint(gfx::Canvas* canvas) override;
+  bool OnMousePressed(const ui::MouseEvent& event) override;
 
   // Overridden from views::WidgetDelegate:
-  virtual views::View* GetContentsView() override;
-  virtual bool CanResize() const override;
-  virtual base::string16 GetWindowTitle() const override;
-  virtual bool CanMaximize() const override;
-  virtual bool CanMinimize() const override;
+  views::View* GetContentsView() override;
+  bool CanResize() const override;
+  base::string16 GetWindowTitle() const override;
+  bool CanMaximize() const override;
+  bool CanMinimize() const override;
 
   // Overridden from views::ButtonListener:
-  virtual void ButtonPressed(views::Button* sender,
-                             const ui::Event& event) override;
+  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
   // Overridden from views::MenuDelegate:
-  virtual void ExecuteCommand(int id, int event_flags) override;
+  void ExecuteCommand(int id, int event_flags) override;
 
   // Override from views::ContextMenuController:
-  virtual void ShowContextMenuForView(views::View* source,
-                                      const gfx::Point& point,
-                                      ui::MenuSourceType source_type) override;
+  void ShowContextMenuForView(views::View* source,
+                              const gfx::Point& point,
+                              ui::MenuSourceType source_type) override;
 
   views::LabelButton* create_button_;
   views::LabelButton* create_persistant_button_;