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

chrome/browser/content_settings/content_settings_internal_extension_provider.h

Index: chrome/browser/content_settings/content_settings_internal_extension_provider.h
diff --git a/chrome/browser/content_settings/content_settings_internal_extension_provider.h b/chrome/browser/content_settings/content_settings_internal_extension_provider.h
index cfbec31aba6e61e355509f639c23d0c71437fd54..ddc91bf11a64dd0c16d5c8cc193a9601ac306bad 100644
--- a/chrome/browser/content_settings/content_settings_internal_extension_provider.h
+++ b/chrome/browser/content_settings/content_settings_internal_extension_provider.h
@@ -27,30 +27,28 @@ class InternalExtensionProvider : public ObservableProvider,
  public:
   explicit InternalExtensionProvider(ExtensionService* extension_service);
 
-  virtual ~InternalExtensionProvider();
+  ~InternalExtensionProvider() override;
 
   // ProviderInterface methods:
-  virtual RuleIterator* GetRuleIterator(
-      ContentSettingsType content_type,
-      const ResourceIdentifier& resource_identifier,
-      bool incognito) const override;
+  RuleIterator* GetRuleIterator(ContentSettingsType content_type,
+                                const ResourceIdentifier& resource_identifier,
+                                bool incognito) const override;
 
-  virtual bool SetWebsiteSetting(
-      const ContentSettingsPattern& primary_pattern,
-      const ContentSettingsPattern& secondary_pattern,
-      ContentSettingsType content_type,
-      const ResourceIdentifier& resource_identifier,
-      base::Value* value) override;
+  bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern,
+                         const ContentSettingsPattern& secondary_pattern,
+                         ContentSettingsType content_type,
+                         const ResourceIdentifier& resource_identifier,
+                         base::Value* value) override;
 
-  virtual void ClearAllContentSettingsRules(ContentSettingsType content_type)
-      override;
+  void ClearAllContentSettingsRules(ContentSettingsType content_type) override;
 
-  virtual void ShutdownOnUIThread() override;
+  void ShutdownOnUIThread() override;
 
   // 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;
+
  private:
   void SetContentSettingForExtension(const extensions::Extension* extension,
                                      ContentSetting setting);