Update {virtual,override,final} to follow C++11 style chrome/browser/chromeos/net.

chrome/browser/chromeos/net/network_portal_web_dialog.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_NET_NETWORK_PORTAL_WEB_DIALOG_H_
 #define CHROME_BROWSER_CHROMEOS_NET_NETWORK_PORTAL_WEB_DIALOG_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/net/network_portal_notification_controller.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 
 namespace views {
 class Widget;
 }
 
 namespace chromeos {
 
 // This is the modal Web dialog to display captive portal login page.
 // It is automatically closed when successful authorization is detected.
 class NetworkPortalWebDialog : public ui::WebDialogDelegate {
  public:
   explicit NetworkPortalWebDialog(
       base::WeakPtr<NetworkPortalNotificationController> controller);
-  virtual ~NetworkPortalWebDialog();
+  ~NetworkPortalWebDialog() override;
 
   void SetWidget(views::Widget* widget);
   void Close();
 
  private:
   // ui::WebDialogDelegate:
-  virtual ui::ModalType GetDialogModalType() const override;
-  virtual base::string16 GetDialogTitle() const override;
-  virtual GURL GetDialogContentURL() const override;
-  virtual void GetWebUIMessageHandlers(
+  ui::ModalType GetDialogModalType() const override;
+  base::string16 GetDialogTitle() const override;
+  GURL GetDialogContentURL() const override;
+  void GetWebUIMessageHandlers(
       std::vector<content::WebUIMessageHandler*>* handlers) const override;
-  virtual void GetDialogSize(gfx::Size* size) const override;
-  virtual std::string GetDialogArgs() const override;
-  virtual bool CanResizeDialog() const override;
-  virtual void OnDialogClosed(const std::string& json_retval) override;
-  virtual void OnCloseContents(content::WebContents* source,
-                               bool* out_close_dialog) override;
-  virtual bool ShouldShowDialogTitle() const override;
+  void GetDialogSize(gfx::Size* size) const override;
+  std::string GetDialogArgs() const override;
+  bool CanResizeDialog() const override;
+  void OnDialogClosed(const std::string& json_retval) override;
+  void OnCloseContents(content::WebContents* source,
+                       bool* out_close_dialog) override;
+  bool ShouldShowDialogTitle() const override;
 
   base::WeakPtr<NetworkPortalNotificationController> controller_;
 
   views::Widget* widget_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkPortalWebDialog);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_NET_NETWORK_PORTAL_WEB_DIALOG_H_