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

chrome/browser/supervised_user/supervised_user_interstitial.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_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
 #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 16 matching lines @@
                                    public SupervisedUserServiceObserver {
  public:
   static void Show(content::WebContents* web_contents,
                    const GURL& url,
                    const base::Callback<void(bool)>& callback);
 
  private:
   SupervisedUserInterstitial(content::WebContents* web_contents,
                              const GURL& url,
                              const base::Callback<void(bool)>& callback);
-  virtual ~SupervisedUserInterstitial();
+  ~SupervisedUserInterstitial() override;
 
   bool Init();
 
   // InterstitialPageDelegate implementation.
-  virtual std::string GetHTMLContents() override;
-  virtual void CommandReceived(const std::string& command) override;
-  virtual void OnProceed() override;
-  virtual void OnDontProceed() override;
+  std::string GetHTMLContents() override;
+  void CommandReceived(const std::string& command) override;
+  void OnProceed() override;
+  void OnDontProceed() override;
 
   // SupervisedUserServiceObserver implementation.
-  virtual void OnURLFilterChanged() override;
+  void OnURLFilterChanged() override;
   // TODO(treib): Also listen to OnCustodianInfoChanged and update as required.
 
   void OnAccessRequestAdded(bool success);
 
   // Returns whether the blocked URL is now allowed. Called initially before the
   // interstitial is shown (to catch race conditions), or when the URL filtering
   // prefs change.
   bool ShouldProceed();
 
   void DispatchContinueRequest(bool continue_request);
 
   // Owns the interstitial, which owns us.
   content::WebContents* web_contents_;
 
   Profile* profile_;
 
   content::InterstitialPage* interstitial_page_;  // Owns us.
 
   GURL url_;
 
   base::Callback<void(bool)> callback_;
 
   base::WeakPtrFactory<SupervisedUserInterstitial> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserInterstitial);
 };
 
 #endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_INTERSTITIAL_H_