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

chrome/browser/download/download_danger_prompt.cc

 // 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.
 
 #include "chrome/browser/download/download_danger_prompt.h"
 
 #include "base/bind.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/download/chrome_download_manager_delegate.h"
@@ skipping 17 matching lines @@
 
 // Implements DownloadDangerPrompt using a TabModalConfirmDialog.
 class DownloadDangerPromptImpl : public DownloadDangerPrompt,
                                  public content::DownloadItem::Observer,
                                  public TabModalConfirmDialogDelegate {
  public:
   DownloadDangerPromptImpl(content::DownloadItem* item,
                            content::WebContents* web_contents,
                            bool show_context,
                            const OnDone& done);
-  virtual ~DownloadDangerPromptImpl();
+  ~DownloadDangerPromptImpl() override;
 
   // DownloadDangerPrompt:
-  virtual void InvokeActionForTesting(Action action) override;
+  void InvokeActionForTesting(Action action) override;
 
  private:
   // content::DownloadItem::Observer:
-  virtual void OnDownloadUpdated(content::DownloadItem* download) override;
+  void OnDownloadUpdated(content::DownloadItem* download) override;
 
   // TabModalConfirmDialogDelegate:
-  virtual base::string16 GetTitle() override;
-  virtual base::string16 GetDialogMessage() override;
-  virtual base::string16 GetAcceptButtonTitle() override;
-  virtual base::string16 GetCancelButtonTitle() override;
-  virtual void OnAccepted() override;
-  virtual void OnCanceled() override;
-  virtual void OnClosed() override;
+  base::string16 GetTitle() override;
+  base::string16 GetDialogMessage() override;
+  base::string16 GetAcceptButtonTitle() override;
+  base::string16 GetCancelButtonTitle() override;
+  void OnAccepted() override;
+  void OnCanceled() override;
+  void OnClosed() override;
 
   void RunDone(Action action);
 
   content::DownloadItem* download_;
   bool show_context_;
   OnDone done_;
 
   scoped_ptr<ExperienceSamplingEvent> sampling_event_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadDangerPromptImpl);
@@ skipping 191 matching lines @@
     content::WebContents* web_contents,
     bool show_context,
     const OnDone& done) {
   DownloadDangerPromptImpl* prompt = new DownloadDangerPromptImpl(
       item, web_contents, show_context, done);
   // |prompt| will be deleted when the dialog is done.
   TabModalConfirmDialog::Create(prompt, web_contents);
   return prompt;
 }
 #endif