Standardize usage of virtual/override/final specifiers.

ui/wm/core/base_focus_rules.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_BASE_FOCUS_RULES_H_
 #define UI_WM_CORE_BASE_FOCUS_RULES_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/wm/core/focus_rules.h"
 
 namespace wm {
 
 // A set of basic focus and activation rules. Specializations should most likely
 // subclass this and call up to these methods rather than reimplementing them.
 class WM_EXPORT BaseFocusRules : public FocusRules {
  protected:
   BaseFocusRules();
-  virtual ~BaseFocusRules();
+  ~BaseFocusRules() override;
 
   // Returns true if the children of |window| can be activated.
   virtual bool SupportsChildActivation(aura::Window* window) const = 0;
 
   // Returns true if |window| is considered visible for activation purposes.
   virtual bool IsWindowConsideredVisibleForActivation(
       aura::Window* window) const;
 
   // Overridden from FocusRules:
-  virtual bool IsToplevelWindow(aura::Window* window) const override;
-  virtual bool CanActivateWindow(aura::Window* window) const override;
-  virtual bool CanFocusWindow(aura::Window* window) const override;
-  virtual aura::Window* GetToplevelWindow(aura::Window* window) const override;
-  virtual aura::Window* GetActivatableWindow(
-      aura::Window* window) const override;
-  virtual aura::Window* GetFocusableWindow(aura::Window* window) const override;
-  virtual aura::Window* GetNextActivatableWindow(
-      aura::Window* ignore) const override;
+  bool IsToplevelWindow(aura::Window* window) const override;
+  bool CanActivateWindow(aura::Window* window) const override;
+  bool CanFocusWindow(aura::Window* window) const override;
+  aura::Window* GetToplevelWindow(aura::Window* window) const override;
+  aura::Window* GetActivatableWindow(aura::Window* window) const override;
+  aura::Window* GetFocusableWindow(aura::Window* window) const override;
+  aura::Window* GetNextActivatableWindow(aura::Window* ignore) const override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BaseFocusRules);
 };
 
 }  // namespace wm
 
 #endif  // UI_WM_CORE_BASE_FOCUS_RULES_H_