diff --git a/gin/modules/module_registry_unittest.cc b/gin/modules/module_registry_unittest.cc
index 57bc02d..3d784dc 100644
--- a/gin/modules/module_registry_unittest.cc
+++ b/gin/modules/module_registry_unittest.cc
@@ -35,7 +35,7 @@
  public:
   ModuleRegistryObserverImpl() : did_add_count_(0) {}
 
-  virtual void OnDidAddPendingModule(
+  void OnDidAddPendingModule(
       const std::string& id,
       const std::vector<std::string>& dependencies) override {
     did_add_count_++;
diff --git a/gin/modules/module_runner_delegate.h b/gin/modules/module_runner_delegate.h
index 421e23a..bd174f0 100644
--- a/gin/modules/module_runner_delegate.h
+++ b/gin/modules/module_runner_delegate.h
@@ -26,7 +26,7 @@
  public:
   explicit ModuleRunnerDelegate(
       const std::vector<base::FilePath>& search_paths);
-  virtual ~ModuleRunnerDelegate();
+  ~ModuleRunnerDelegate() override;
 
   void AddBuiltinModule(const std::string& id, ModuleGetter getter);
   void AddBuiltinModule(const std::string& id,
@@ -39,11 +39,11 @@
   typedef std::map<std::string, ModuleGetterCallback> BuiltinModuleMap;
 
   // From ShellRunnerDelegate:
-  virtual v8::Handle<v8::ObjectTemplate> GetGlobalTemplate(
+  v8::Handle<v8::ObjectTemplate> GetGlobalTemplate(
       ShellRunner* runner,
       v8::Isolate* isolate) override;
-  virtual void DidCreateContext(ShellRunner* runner) override;
-  virtual void DidRunScript(ShellRunner* runner) override;
+  void DidCreateContext(ShellRunner* runner) override;
+  void DidRunScript(ShellRunner* runner) override;
 
   BuiltinModuleMap builtin_modules_;
   FileModuleProvider module_provider_;
diff --git a/gin/modules/timer.h b/gin/modules/timer.h
index 6284668..4913477 100644
--- a/gin/modules/timer.h
+++ b/gin/modules/timer.h
@@ -29,13 +29,12 @@
   static Handle<Timer> Create(TimerType type, v8::Isolate* isolate,
                               int delay_ms, v8::Handle<v8::Function> function);
 
-  virtual ObjectTemplateBuilder GetObjectTemplateBuilder(
-      v8::Isolate* isolate) override;
+  ObjectTemplateBuilder GetObjectTemplateBuilder(v8::Isolate* isolate) override;
 
  private:
   Timer(v8::Isolate* isolate, bool repeating, int delay_ms,
         v8::Handle<v8::Function> function);
-  virtual ~Timer();
+  ~Timer() override;
   void OnTimerFired();
 
   base::Timer timer_;
@@ -55,10 +54,9 @@
 
  private:
   TimerModule();
-  virtual ~TimerModule();
+  ~TimerModule() override;
 
-  virtual ObjectTemplateBuilder GetObjectTemplateBuilder(
-      v8::Isolate* isolate) override;
+  ObjectTemplateBuilder GetObjectTemplateBuilder(v8::Isolate* isolate) override;
 };
 
 }  // namespace gin
diff --git a/gin/modules/timer_unittest.cc b/gin/modules/timer_unittest.cc
index 42d7050..705bdc5 100644
--- a/gin/modules/timer_unittest.cc
+++ b/gin/modules/timer_unittest.cc
@@ -37,10 +37,9 @@
   Result() : count_(0) {
   }
 
-  virtual ~Result() {
-  }
+  ~Result() override {}
 
-  virtual ObjectTemplateBuilder GetObjectTemplateBuilder(
+  ObjectTemplateBuilder GetObjectTemplateBuilder(
       v8::Isolate* isolate) override {
     return Wrappable<Result>::GetObjectTemplateBuilder(isolate)
         .SetProperty("count", &Result::count, &Result::set_count)