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

chrome/browser/extensions/api/preference/preference_api.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_PREFERENCE_PREFERENCE_API_H__
 #define CHROME_BROWSER_EXTENSIONS_API_PREFERENCE_PREFERENCE_API_H__
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 78 matching lines @@
   virtual ExtensionPrefValueMap* extension_pref_value_map() = 0;
   virtual scoped_refptr<ContentSettingsStore> content_settings_store() = 0;
 };
 
 class PreferenceAPI : public PreferenceAPIBase,
                       public BrowserContextKeyedAPI,
                       public EventRouter::Observer,
                       public ContentSettingsStore::Observer {
  public:
   explicit PreferenceAPI(content::BrowserContext* context);
-  virtual ~PreferenceAPI();
+  ~PreferenceAPI() override;
 
   // KeyedService implementation.
-  virtual void Shutdown() override;
+  void Shutdown() override;
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<PreferenceAPI>* GetFactoryInstance();
 
   // Convenience method to get the PreferenceAPI for a profile.
   static PreferenceAPI* Get(content::BrowserContext* context);
 
   // EventRouter::Observer implementation.
-  virtual void OnListenerAdded(const EventListenerInfo& details) override;
+  void OnListenerAdded(const EventListenerInfo& details) override;
 
  private:
   friend class BrowserContextKeyedAPIFactory<PreferenceAPI>;
 
   // ContentSettingsStore::Observer implementation.
-  virtual void OnContentSettingChanged(const std::string& extension_id,
-                                       bool incognito) override;
+  void OnContentSettingChanged(const std::string& extension_id,
+                               bool incognito) override;
 
   // Clears incognito session-only content settings for all extensions.
   void ClearIncognitoSessionOnlyContentSettings();
 
   // PreferenceAPIBase implementation.
-  virtual ExtensionPrefs* extension_prefs() override;
-  virtual ExtensionPrefValueMap* extension_pref_value_map() override;
-  virtual scoped_refptr<ContentSettingsStore> content_settings_store() override;
+  ExtensionPrefs* extension_prefs() override;
+  ExtensionPrefValueMap* extension_pref_value_map() override;
+  scoped_refptr<ContentSettingsStore> content_settings_store() override;
 
   Profile* profile_;
 
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() {
     return "PreferenceAPI";
   }
   static const bool kServiceIsNULLWhileTesting = true;
   static const bool kServiceRedirectedInIncognito = true;
 
@@ skipping 25 matching lines @@
   virtual base::Value* BrowserToExtensionPref(
       const base::Value* browser_pref) = 0;
 };
 
 // A base class to provide functionality common to the other *PreferenceFunction
 // classes.
 class PreferenceFunction : public ChromeSyncExtensionFunction {
  protected:
   enum PermissionType { PERMISSION_TYPE_READ, PERMISSION_TYPE_WRITE };
 
-  virtual ~PreferenceFunction();
+  ~PreferenceFunction() override;
 
   // Given an |extension_pref_key|, provides its |browser_pref_key| from the
   // static map in preference_api.cc. Returns true if the corresponding
   // browser pref exists and the extension has the API permission needed to
   // modify that pref. Sets |error_| if the extension doesn't have the needed
   // permission.
   bool ValidateBrowserPref(const std::string& extension_pref_key,
                            PermissionType permission_type,
                            std::string* browser_pref_key);
 };
 
 class GetPreferenceFunction : public PreferenceFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("types.ChromeSetting.get", TYPES_CHROMESETTING_GET)
 
  protected:
-  virtual ~GetPreferenceFunction();
+  ~GetPreferenceFunction() override;
 
   // ExtensionFunction:
-  virtual bool RunSync() override;
+  bool RunSync() override;
 };
 
 class SetPreferenceFunction : public PreferenceFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("types.ChromeSetting.set", TYPES_CHROMESETTING_SET)
 
  protected:
-  virtual ~SetPreferenceFunction();
+  ~SetPreferenceFunction() override;
 
   // ExtensionFunction:
-  virtual bool RunSync() override;
+  bool RunSync() override;
 };
 
 class ClearPreferenceFunction : public PreferenceFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("types.ChromeSetting.clear",
                              TYPES_CHROMESETTING_CLEAR)
 
  protected:
-  virtual ~ClearPreferenceFunction();
+  ~ClearPreferenceFunction() override;
 
   // ExtensionFunction:
-  virtual bool RunSync() override;
+  bool RunSync() override;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_PREFERENCE_PREFERENCE_API_H__