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

Source/modules/device_orientation/DeviceMotionController.h

Index: Source/modules/device_orientation/DeviceMotionController.h
diff --git a/Source/modules/device_orientation/DeviceMotionController.h b/Source/modules/device_orientation/DeviceMotionController.h
index b458c0b5543d14736398778c5b0581cc9cdc5498..5a45d769d1300e1defe839d6c159af61375878cf 100644
--- a/Source/modules/device_orientation/DeviceMotionController.h
+++ b/Source/modules/device_orientation/DeviceMotionController.h
@@ -16,7 +16,7 @@ class Event;
 class MODULES_EXPORT DeviceMotionController final : public DeviceSingleWindowEventController, public WillBeHeapSupplement<Document> {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(DeviceMotionController);
 public:
-    virtual ~DeviceMotionController();
+    ~DeviceMotionController() override;
 
     static const char* supplementName();
     static DeviceMotionController& from(Document&);
@@ -30,14 +30,14 @@ private:
     explicit DeviceMotionController(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