Standardize usage of virtual/override/final in extensions/

extensions/browser/mock_extension_system.h

Index: extensions/browser/mock_extension_system.h
diff --git a/extensions/browser/mock_extension_system.h b/extensions/browser/mock_extension_system.h
index a9a36e851d106cf8241a77fde96b7f261177795e..5e35b1228961b805df5a2a648d657ea4e42b5163 100644
--- a/extensions/browser/mock_extension_system.h
+++ b/extensions/browser/mock_extension_system.h
@@ -21,34 +21,33 @@ namespace extensions {
 class MockExtensionSystem : public ExtensionSystem {
  public:
   explicit MockExtensionSystem(content::BrowserContext* context);
-  virtual ~MockExtensionSystem();
+  ~MockExtensionSystem() override;
 
   content::BrowserContext* browser_context() { return browser_context_; }
 
   // ExtensionSystem overrides:
-  virtual void InitForRegularProfile(bool extensions_enabled) override;
-  virtual ExtensionService* extension_service() override;
-  virtual RuntimeData* runtime_data() override;
-  virtual ManagementPolicy* management_policy() override;
-  virtual SharedUserScriptMaster* shared_user_script_master() override;
-  virtual ProcessManager* process_manager() override;
-  virtual StateStore* state_store() override;
-  virtual StateStore* rules_store() override;
-  virtual InfoMap* info_map() override;
-  virtual LazyBackgroundTaskQueue* lazy_background_task_queue() override;
-  virtual EventRouter* event_router() override;
-  virtual WarningService* warning_service() override;
-  virtual Blacklist* blacklist() override;
-  virtual ErrorConsole* error_console() override;
-  virtual InstallVerifier* install_verifier() override;
-  virtual QuotaService* quota_service() override;
-  virtual const OneShotEvent& ready() const override;
-  virtual ContentVerifier* content_verifier() override;
-  virtual scoped_ptr<ExtensionSet> GetDependentExtensions(
+  void InitForRegularProfile(bool extensions_enabled) override;
+  ExtensionService* extension_service() override;
+  RuntimeData* runtime_data() override;
+  ManagementPolicy* management_policy() override;
+  SharedUserScriptMaster* shared_user_script_master() override;
+  ProcessManager* process_manager() override;
+  StateStore* state_store() override;
+  StateStore* rules_store() override;
+  InfoMap* info_map() override;
+  LazyBackgroundTaskQueue* lazy_background_task_queue() override;
+  EventRouter* event_router() override;
+  WarningService* warning_service() override;
+  Blacklist* blacklist() override;
+  ErrorConsole* error_console() override;
+  InstallVerifier* install_verifier() override;
+  QuotaService* quota_service() override;
+  const OneShotEvent& ready() const override;
+  ContentVerifier* content_verifier() override;
+  scoped_ptr<ExtensionSet> GetDependentExtensions(
       const Extension* extension) override;
-  virtual DeclarativeUserScriptMaster*
-      GetDeclarativeUserScriptMasterByExtension(
-          const ExtensionId& extension_id) override;
+  DeclarativeUserScriptMaster* GetDeclarativeUserScriptMasterByExtension(
+      const ExtensionId& extension_id) override;
 
  private:
   content::BrowserContext* browser_context_;