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

Source/modules/device_orientation/DeviceMotionEvent.h

Index: Source/modules/device_orientation/DeviceMotionEvent.h
diff --git a/Source/modules/device_orientation/DeviceMotionEvent.h b/Source/modules/device_orientation/DeviceMotionEvent.h
index c265257d1b45ee47787dd1c306d900398119b289..7e06710263fa08d1d274cbb78b8eb698e24ebd91 100644
--- a/Source/modules/device_orientation/DeviceMotionEvent.h
+++ b/Source/modules/device_orientation/DeviceMotionEvent.h
@@ -38,7 +38,7 @@ class DeviceRotationRate;
 class DeviceMotionEvent final : public Event {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    virtual ~DeviceMotionEvent();
+    ~DeviceMotionEvent() override;
     static PassRefPtrWillBeRawPtr<DeviceMotionEvent> create()
     {
         return adoptRefWillBeNoop(new DeviceMotionEvent);
@@ -57,7 +57,7 @@ public:
     DeviceRotationRate* rotationRate();
     double interval(bool& isNull) const;
 
-    virtual const AtomicString& interfaceName() const override;
+    const AtomicString& interfaceName() const override;
 
     DECLARE_VIRTUAL_TRACE();