Replace the virtual InfoBarDelegate::InfoBarClosed() function with a non-virtual one. This is a ...

chrome/browser/alternate_nav_url_fetcher.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_ALTERNATE_NAV_URL_FETCHER_H_
 #define CHROME_BROWSER_ALTERNATE_NAV_URL_FETCHER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 29 matching lines @@
 
   explicit AlternateNavURLFetcher(const GURL& alternate_nav_url);
   virtual ~AlternateNavURLFetcher();
 
   State state() const { return state_; }
 
  private:
   // NotificationObserver
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
-                       const NotificationDetails& details);
+                       const NotificationDetails& details) OVERRIDE;
 
   // URLFetcher::Delegate
   virtual void OnURLFetchComplete(const URLFetcher* source,
                                   const GURL& url,
                                   const net::URLRequestStatus& status,
                                   int response_code,
                                   const ResponseCookies& cookies,
-                                  const std::string& data);
+                                  const std::string& data) OVERRIDE;
 
   // LinkInfoBarDelegate
-  virtual gfx::Image* GetIcon() const;
-  virtual Type GetInfoBarType() const;
-  virtual string16 GetMessageTextWithOffset(size_t* link_offset) const;
-  virtual string16 GetLinkText() const;
-  virtual bool LinkClicked(WindowOpenDisposition disposition);
-  virtual void InfoBarClosed();
+  virtual gfx::Image* GetIcon() const OVERRIDE;
+  virtual Type GetInfoBarType() const OVERRIDE;
+  virtual string16 GetMessageTextWithOffset(size_t* link_offset) const OVERRIDE;
+  virtual string16 GetLinkText() const OVERRIDE;
+  virtual bool LinkClicked(WindowOpenDisposition disposition) OVERRIDE;
 
   // Sets |state_| to either SUCCEEDED or FAILED depending on the result of the
   // fetch.
   void SetStatusFromURLFetch(const GURL& url,
                              const net::URLRequestStatus& status,
                              int response_code);
 
   // Displays the infobar if all conditions are met (the page has loaded and
   // the fetch of the alternate URL succeeded).
   void ShowInfobarIfPossible();
 
   GURL alternate_nav_url_;
   scoped_ptr<URLFetcher> fetcher_;
   NavigationController* controller_;
   State state_;
   bool navigated_to_entry_;
 
   // The TabContents the InfoBarDelegate was added to.
   TabContents* infobar_contents_;
 
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(AlternateNavURLFetcher);
 };
 
 #endif  // CHROME_BROWSER_ALTERNATE_NAV_URL_FETCHER_H_