Fix virtual/override/final usage in Source/modules/.

Source/modules/device_light/DeviceLightController.h

Index: Source/modules/device_light/DeviceLightController.h
diff --git a/Source/modules/device_light/DeviceLightController.h b/Source/modules/device_light/DeviceLightController.h
index 715d2f1eac92363789b8f41bafeae4406fa26c70..91f2ab0ad0a81649714805c421f980eb687c1427 100644
--- a/Source/modules/device_light/DeviceLightController.h
+++ b/Source/modules/device_light/DeviceLightController.h
@@ -16,7 +16,7 @@ class Event;
 class MODULES_EXPORT DeviceLightController final : public DeviceSingleWindowEventController, public WillBeHeapSupplement<Document> {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DeviceLightController);
 public:
-    virtual ~DeviceLightController();
+    ~DeviceLightController() override;
 
     static const char* supplementName();
     static DeviceLightController& from(Document&);
@@ -27,14 +27,14 @@ private:
     explicit DeviceLightController(Document&);
 
     // Inherited from DeviceEventControllerBase.
-    virtual void registerWithDispatcher() override;
-    virtual void unregisterWithDispatcher() override;
-    virtual bool hasLastData() override;
+    void registerWithDispatcher() override;
+    void unregisterWithDispatcher() override;
+    bool hasLastData() override;
 
     // Inherited from DeviceSingleWindowEventController.
-    virtual PassRefPtrWillBeRawPtr<Event> lastEvent() const override;
-    virtual const AtomicString& eventTypeName() const override;
-    virtual bool isNullEvent(Event*) const override;
+    PassRefPtrWillBeRawPtr<Event> lastEvent() const override;
+    const AtomicString& eventTypeName() const override;
+    bool isNullEvent(Event*) const override;
 };
 
 } // namespace blink