Standardize usage of virtual/override/final specifiers.

ui/wm/core/window_modality_controller.h

 // 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.
 
 #ifndef UI_WM_CORE_WINDOW_MODALITY_CONTROLLER_H_
 #define UI_WM_CORE_WINDOW_MODALITY_CONTROLLER_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 17 matching lines @@
 WM_EXPORT aura::Window* GetModalTransient(aura::Window* window);
 
 // WindowModalityController is an event filter that consumes events sent to
 // windows that are the transient parents of window-modal windows. This filter
 // must be added to the CompoundEventFilter so that activation works properly.
 class WM_EXPORT WindowModalityController : public ui::EventHandler,
                                            public aura::EnvObserver,
                                            public aura::WindowObserver {
  public:
   explicit WindowModalityController(ui::EventTarget* event_target);
-  virtual ~WindowModalityController();
+  ~WindowModalityController() override;
 
   // Overridden from ui::EventHandler:
-  virtual void OnKeyEvent(ui::KeyEvent* event) override;
-  virtual void OnMouseEvent(ui::MouseEvent* event) override;
-  virtual void OnTouchEvent(ui::TouchEvent* event) override;
+  void OnKeyEvent(ui::KeyEvent* event) override;
+  void OnMouseEvent(ui::MouseEvent* event) override;
+  void OnTouchEvent(ui::TouchEvent* event) override;
 
   // Overridden from aura::EnvObserver:
-  virtual void OnWindowInitialized(aura::Window* window) override;
+  void OnWindowInitialized(aura::Window* window) override;
 
   // Overridden from aura::WindowObserver:
-  virtual void OnWindowPropertyChanged(aura::Window* window,
-                                       const void* key,
-                                       intptr_t old) override;
-  virtual void OnWindowVisibilityChanged(aura::Window* window,
-                                         bool visible) override;
-  virtual void OnWindowDestroyed(aura::Window* window) override;
+  void OnWindowPropertyChanged(aura::Window* window,
+                               const void* key,
+                               intptr_t old) override;
+  void OnWindowVisibilityChanged(aura::Window* window, bool visible) override;
+  void OnWindowDestroyed(aura::Window* window) override;
 
  private:
   // Processes a mouse/touch event, and returns true if the event should be
   // consumed.
   bool ProcessLocatedEvent(aura::Window* target,
                            ui::LocatedEvent* event);
 
   std::vector<aura::Window*> windows_;
 
   ui::EventTarget* event_target_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowModalityController);
 };
 
 }  // namespace wm
 
 #endif  // UI_WM_CORE_WINDOW_MODALITY_CONTROLLER_H_