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

Source/modules/geofencing/CircularGeofencingRegion.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CircularGeofencingRegion_h
 #define CircularGeofencingRegion_h
 
 #include "modules/ModulesExport.h"
 #include "modules/geofencing/GeofencingRegion.h"
 #include "public/platform/WebCircularGeofencingRegion.h"
 
 namespace blink {
 
 class CircularGeofencingRegionInit;
 
 class MODULES_EXPORT CircularGeofencingRegion final : public GeofencingRegion {
     DEFINE_WRAPPERTYPEINFO();
     WTF_MAKE_NONCOPYABLE(CircularGeofencingRegion);
 public:
     static CircularGeofencingRegion* create(const CircularGeofencingRegionInit&);
     static CircularGeofencingRegion* create(const WebString& id, const WebCircularGeofencingRegion&);
-    virtual ~CircularGeofencingRegion() { }
+    ~CircularGeofencingRegion() override { }
 
     double latitude() const { return m_webRegion.latitude; }
     double longitude() const { return m_webRegion.longitude; }
     double radius() const { return m_webRegion.radius; }
 
     WebCircularGeofencingRegion webRegion() const;
 
     DEFINE_INLINE_VIRTUAL_TRACE() { GeofencingRegion::trace(visitor); }
 
-    virtual bool isCircularGeofencingRegion() const override { return true; }
+    bool isCircularGeofencingRegion() const override { return true; }
 
 private:
     explicit CircularGeofencingRegion(const String& id, const WebCircularGeofencingRegion&);
 
     WebCircularGeofencingRegion m_webRegion;
 };
 
 DEFINE_TYPE_CASTS(CircularGeofencingRegion, GeofencingRegion, region, region->isCircularGeofencingRegion(), region.isCircularGeofencingRegion());
 
 } // namespace blink
 
 #endif // CircularGeofencingRegion_h