Standardize usage of virtual/override/final specifiers.

ash/system/user/user_view.cc

 // Copyright 2014 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 "ash/system/user/user_view.h"
 
 #include <algorithm>
 
 #include "ash/multi_profile_uma.h"
 #include "ash/popup_message.h"
@@ skipping 74 matching lines @@
   // If |placeholder| is true, button is used as placeholder. That means that
   // button is inactive and is not painted, but consume the same ammount of
   // space, as if it was painted.
   LogoutButton(views::ButtonListener* listener,
                const base::string16& text,
                bool placeholder)
       : TrayPopupLabelButton(listener, text), placeholder_(placeholder) {
     SetEnabled(!placeholder_);
   }
 
-  virtual ~LogoutButton() {}
+  ~LogoutButton() override {}
 
  private:
-  virtual void Paint(gfx::Canvas* canvas,
-                     const views::CullSet& cull_set) override {
+  void Paint(gfx::Canvas* canvas, const views::CullSet& cull_set) override {
     // Just skip paint if this button used as a placeholder.
     if (!placeholder_)
       TrayPopupLabelButton::Paint(canvas, cull_set);
   }
 
   bool placeholder_;
   DISALLOW_COPY_AND_ASSIGN(LogoutButton);
 };
 
 class UserViewMouseWatcherHost : public views::MouseWatcherHost {
  public:
   explicit UserViewMouseWatcherHost(const gfx::Rect& screen_area)
       : screen_area_(screen_area) {}
-  virtual ~UserViewMouseWatcherHost() {}
+  ~UserViewMouseWatcherHost() override {}
 
   // Implementation of MouseWatcherHost.
-  virtual bool Contains(const gfx::Point& screen_point,
-                        views::MouseWatcherHost::MouseEventType type) override {
+  bool Contains(const gfx::Point& screen_point,
+                views::MouseWatcherHost::MouseEventType type) override {
     return screen_area_.Contains(screen_point);
   }
 
  private:
   gfx::Rect screen_area_;
 
   DISALLOW_COPY_AND_ASSIGN(UserViewMouseWatcherHost);
 };
 
 // The menu item view which gets shown when the user clicks in multi profile
 // mode onto the user item.
 class AddUserView : public views::View {
  public:
   // The |owner| is the view for which this view gets created.
   AddUserView(ButtonFromView* owner);
-  virtual ~AddUserView();
+  ~AddUserView() override;
 
   // Get the anchor view for a message.
   views::View* anchor() { return anchor_; }
 
  private:
   // Overridden from views::View.
-  virtual gfx::Size GetPreferredSize() const override;
+  gfx::Size GetPreferredSize() const override;
 
   // Create the additional client content for this item.
   void AddContent();
 
   // This is the content we create and show.
   views::View* add_user_;
 
   // This is the owner view of this item.
   ButtonFromView* owner_;
 
@@ skipping 411 matching lines @@
   focus_manager_ = NULL;
   if (user_card_view_->GetFocusManager())
     user_card_view_->GetFocusManager()->ClearFocus();
   popup_message_.reset();
   mouse_watcher_.reset();
   add_menu_option_.reset();
 }
 
 }  // namespace tray
 }  // namespace ash