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

chrome/browser/extensions/user_script_loader.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_EXTENSIONS_USER_SCRIPT_LOADER_H_
 #define CHROME_BROWSER_EXTENSIONS_USER_SCRIPT_LOADER_H_
 
 #include <map>
 #include <set>
 
@@ skipping 41 matching lines @@
   static bool ParseMetadataHeader(const base::StringPiece& script_text,
                                   UserScript* script);
 
   // A wrapper around the method to load user scripts, which is normally run on
   // the file thread. Exposed only for tests.
   static void LoadScriptsForTest(UserScriptList* user_scripts);
 
   UserScriptLoader(Profile* profile,
                    const ExtensionId& owner_extension_id,
                    bool listen_for_extension_system_loaded);
-  virtual ~UserScriptLoader();
+  ~UserScriptLoader() override;
 
   // Add |scripts| to the set of scripts managed by this loader.
   void AddScripts(const std::set<UserScript>& scripts);
 
   // Remove |scripts| from the set of scripts managed by this loader.
   void RemoveScripts(const std::set<UserScript>& scripts);
 
   // Clears the set of scripts managed by this loader.
   void ClearScripts();
 
   // Initiates procedure to start loading scripts on the file thread.
   void StartLoad();
 
   // Return true if we have any scripts ready.
   bool scripts_ready() const { return shared_memory_.get() != NULL; }
 
  private:
   // content::NotificationObserver implementation.
-  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;
 
   // ExtensionRegistryObserver implementation.
-  virtual void OnExtensionUnloaded(
-      content::BrowserContext* browser_context,
-      const Extension* extension,
-      UnloadedExtensionInfo::Reason reason) override;
+  void OnExtensionUnloaded(content::BrowserContext* browser_context,
+                           const Extension* extension,
+                           UnloadedExtensionInfo::Reason reason) override;
 
   // Initiates script load when we have been waiting for the extension system
   // to be ready.
   void OnExtensionSystemReady();
 
   // Returns whether or not it is possible that calls to AddScripts(),
   // RemoveScripts(), and/or ClearScripts() have caused any real change in the
   // set of scripts to be loaded.
   bool ScriptsMayHaveChanged() const;
 
@@ skipping 72 matching lines @@
       extension_registry_observer_;
 
   base::WeakPtrFactory<UserScriptLoader> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UserScriptLoader);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_USER_SCRIPT_LOADER_H_