Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/device_orientation/DeviceMotionDispatcher.h

Index: Source/modules/device_orientation/DeviceMotionDispatcher.h
diff --git a/Source/modules/device_orientation/DeviceMotionDispatcher.h b/Source/modules/device_orientation/DeviceMotionDispatcher.h
index 03ced17fb87167fa441db492e6fb93afe4d33123..3d5d3a86b080a7cdfdec40fba3ab87d84e968ddf 100644
--- a/Source/modules/device_orientation/DeviceMotionDispatcher.h
+++ b/Source/modules/device_orientation/DeviceMotionDispatcher.h
@@ -46,7 +46,7 @@ class DeviceMotionData;
 
 // This class listens to device motion data and dispatches it to all
 // listening controllers.
-class DeviceMotionDispatcher : public DeviceSensorEventDispatcher, public blink::WebDeviceMotionListener {
+class DeviceMotionDispatcher FINAL : public DeviceSensorEventDispatcher, public blink::WebDeviceMotionListener {
 public:
     static DeviceMotionDispatcher& instance();
 
@@ -61,7 +61,7 @@ public:
 
 private:
     DeviceMotionDispatcher();
-    ~DeviceMotionDispatcher();
+    virtual ~DeviceMotionDispatcher();
 
     virtual void startListening() OVERRIDE;
     virtual void stopListening() OVERRIDE;