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

Source/modules/screen_orientation/ScreenOrientationController.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 ScreenOrientationController_h
 #define ScreenOrientationController_h
 
 #include "core/frame/LocalFrameLifecycleObserver.h"
 #include "core/frame/PlatformEventController.h"
 #include "modules/ModulesExport.h"
@@ skipping 10 matching lines @@
 class WebScreenOrientationClient;
 
 class MODULES_EXPORT ScreenOrientationController final
     : public NoBaseWillBeGarbageCollectedFinalized<ScreenOrientationController>
     , public WillBeHeapSupplement<LocalFrame>
     , public LocalFrameLifecycleObserver
     , public PlatformEventController {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ScreenOrientationController);
     WTF_MAKE_NONCOPYABLE(ScreenOrientationController);
 public:
-    virtual ~ScreenOrientationController();
+    ~ScreenOrientationController() override;
 
     void setOrientation(ScreenOrientation*);
     void notifyOrientationChanged();
 
     void lock(WebScreenOrientationLockType, WebLockOrientationCallback*);
     void unlock();
 
     void setOverride(WebScreenOrientationType, unsigned short angle);
     void clearOverride();
 
     static void provideTo(LocalFrame&, WebScreenOrientationClient*);
     static ScreenOrientationController* from(LocalFrame&);
     static const char* supplementName();
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     ScreenOrientationController(LocalFrame&, WebScreenOrientationClient*);
 
     static WebScreenOrientationType computeOrientation(const IntRect&, uint16_t);
 
     // Inherited from PlatformEventController.
-    virtual void didUpdateData() override;
-    virtual void registerWithDispatcher() override;
-    virtual void unregisterWithDispatcher() override;
-    virtual bool hasLastData() override;
-    virtual void pageVisibilityChanged() override;
+    void didUpdateData() override;
+    void registerWithDispatcher() override;
+    void unregisterWithDispatcher() override;
+    bool hasLastData() override;
+    void pageVisibilityChanged() override;
 
     // Inherited from LocalFrameLifecycleObserver.
-    virtual void willDetachFrameHost() override;
+    void willDetachFrameHost() override;
 
     unsigned short effectiveAngle(ChromeClient&);
     WebScreenOrientationType effectiveType(ChromeClient&);
 
     void notifyDispatcher();
 
     void updateOrientation();
 
     void dispatchEventTimerFired(Timer<ScreenOrientationController>*);
 
     bool isActiveAndVisible() const;
 
     PersistentWillBeMember<ScreenOrientation> m_orientation;
     WebScreenOrientationClient* m_client;
     Timer<ScreenOrientationController> m_dispatchEventTimer;
     bool m_override;
     WebScreenOrientationType m_overrideType;
     unsigned short m_overrideAngle;
 };
 
 } // namespace blink
 
 #endif // ScreenOrientationController_h