Standardize usage of virtual/override/final in chrome/browser/download/

chrome/browser/download/download_request_infobar_delegate.h

 // Copyright (c) 2011 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_DOWNLOAD_DOWNLOAD_REQUEST_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_REQUEST_INFOBAR_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/download/download_request_limiter.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 
 class InfoBarService;
 
 // An infobar delegate that presents the user with a choice to allow or deny
 // multiple downloads from the same site. This confirmation step protects
 // against "carpet-bombing", where a malicious site forces multiple downloads
 // on an unsuspecting user.
 class DownloadRequestInfoBarDelegate : public ConfirmInfoBarDelegate {
  public:
   typedef base::Callback<void(
       InfoBarService* infobar_service,
       base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host)>
     FakeCreateCallback;
 
-  virtual ~DownloadRequestInfoBarDelegate();
+  ~DownloadRequestInfoBarDelegate() override;
 
   // Creates a download request delegate and adds it to |infobar_service|.
   static void Create(
       InfoBarService* infobar_service,
       base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host);
 
 #if defined(UNIT_TEST)
   static scoped_ptr<DownloadRequestInfoBarDelegate> Create(
       base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host) {
     return scoped_ptr<DownloadRequestInfoBarDelegate>(
         new DownloadRequestInfoBarDelegate(host));
   }
 #endif
 
   static void SetCallbackForTesting(FakeCreateCallback* callback);
 
  private:
   static FakeCreateCallback* callback_;
 
   explicit DownloadRequestInfoBarDelegate(
       base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host);
 
   // ConfirmInfoBarDelegate:
-  virtual int GetIconID() const override;
-  virtual base::string16 GetMessageText() const override;
-  virtual base::string16 GetButtonLabel(InfoBarButton button) const override;
-  virtual bool Accept() override;
-  virtual bool Cancel() override;
+  int GetIconID() const override;
+  base::string16 GetMessageText() const override;
+  base::string16 GetButtonLabel(InfoBarButton button) const override;
+  bool Accept() override;
+  bool Cancel() override;
 
   bool responded_;
   base::WeakPtr<DownloadRequestLimiter::TabDownloadState> host_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadRequestInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_REQUEST_INFOBAR_DELEGATE_H_