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

chrome/browser/tab_contents/background_contents.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_TAB_CONTENTS_BACKGROUND_CONTENTS_H_
 #define CHROME_BROWSER_TAB_CONTENTS_BACKGROUND_CONTENTS_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 31 matching lines @@
    protected:
     virtual ~Delegate() {}
   };
 
   BackgroundContents(
       content::SiteInstance* site_instance,
       int routing_id,
       Delegate* delegate,
       const std::string& partition_id,
       content::SessionStorageNamespace* session_storage_namespace);
-  virtual ~BackgroundContents();
+  ~BackgroundContents() override;
 
   content::WebContents* web_contents() const { return web_contents_.get(); }
   virtual const GURL& GetURL() const;
 
   // content::WebContentsDelegate implementation:
-  virtual void CloseContents(content::WebContents* source) override;
-  virtual bool ShouldSuppressDialogs() override;
-  virtual void DidNavigateMainFramePostCommit(
-      content::WebContents* tab) override;
-  virtual void AddNewContents(content::WebContents* source,
-                              content::WebContents* new_contents,
-                              WindowOpenDisposition disposition,
-                              const gfx::Rect& initial_pos,
-                              bool user_gesture,
-                              bool* was_blocked) override;
-  virtual bool IsNeverVisible(content::WebContents* web_contents) override;
+  void CloseContents(content::WebContents* source) override;
+  bool ShouldSuppressDialogs() override;
+  void DidNavigateMainFramePostCommit(content::WebContents* tab) override;
+  void AddNewContents(content::WebContents* source,
+                      content::WebContents* new_contents,
+                      WindowOpenDisposition disposition,
+                      const gfx::Rect& initial_pos,
+                      bool user_gesture,
+                      bool* was_blocked) override;
+  bool IsNeverVisible(content::WebContents* web_contents) override;
 
   // content::WebContentsObserver implementation:
-  virtual void RenderProcessGone(base::TerminationStatus status) override;
+  void RenderProcessGone(base::TerminationStatus status) override;
 
   // content::NotificationObserver
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
  protected:
   // Exposed for testing.
   BackgroundContents();
 
  private:
   // The delegate for this BackgroundContents.
   Delegate* delegate_;
 
   Profile* profile_;
   scoped_ptr<content::WebContents> web_contents_;
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundContents);
 };
 
 // This is the data sent out as the details with BACKGROUND_CONTENTS_OPENED.
 struct BackgroundContentsOpenedDetails {
   // The BackgroundContents object that has just been opened.
   BackgroundContents* contents;
 
   // The name of the parent frame for these contents.
   const base::string16& frame_name;
 
   // The ID of the parent application (if any).
   const base::string16& application_id;
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_BACKGROUND_CONTENTS_H_