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

chrome/browser/content_settings/content_settings_default_provider.h

Index: chrome/browser/content_settings/content_settings_default_provider.h
diff --git a/chrome/browser/content_settings/content_settings_default_provider.h b/chrome/browser/content_settings/content_settings_default_provider.h
index 4d39dacb549172999ceba73ad2f5f3ad0c40d318..8163e8ded494713596ceca01fc5f3130698663ec 100644
--- a/chrome/browser/content_settings/content_settings_default_provider.h
+++ b/chrome/browser/content_settings/content_settings_default_provider.h
@@ -32,25 +32,22 @@ class DefaultProvider : public ObservableProvider {
 
   DefaultProvider(PrefService* prefs,
                   bool incognito);
-  virtual ~DefaultProvider();
+  ~DefaultProvider() override;
 
   // ProviderInterface implementations.
-  virtual 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;
-
-  virtual void ClearAllContentSettingsRules(
-      ContentSettingsType content_type) override;
-
-  virtual void ShutdownOnUIThread() override;
+  RuleIterator* GetRuleIterator(ContentSettingsType content_type,
+                                const ResourceIdentifier& resource_identifier,
+                                bool incognito) const override;
+
+  bool SetWebsiteSetting(const ContentSettingsPattern& primary_pattern,
+                         const ContentSettingsPattern& secondary_pattern,
+                         ContentSettingsType content_type,
+                         const ResourceIdentifier& resource_identifier,
+                         base::Value* value) override;
+
+  void ClearAllContentSettingsRules(ContentSettingsType content_type) override;
+
+  void ShutdownOnUIThread() override;
 
  private:
   // Sets the fields of |settings| based on the values in |dictionary|.