Update web classes to use OVERRIDE / FINAL when needed

Source/web/GeolocationClientMock.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2012 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 29 matching lines @@
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 class GeolocationController;
 class GeolocationPosition;
 }
 
 namespace blink {
 
 // Provides a mock object for the geolocation client.
-class GeolocationClientMock : public WebCore::GeolocationClient {
+class GeolocationClientMock FINAL : public WebCore::GeolocationClient {
 public:
     GeolocationClientMock();
     virtual ~GeolocationClientMock();
 
     void reset();
     void setController(WebCore::GeolocationController*);
 
     void setPosition(PassRefPtr<WebCore::GeolocationPosition>);
     void setPositionUnavailableError(const String& errorMessage);
     void setPermission(bool allowed);
@@ skipping 30 matching lines @@
         PermissionStateAllowed,
         PermissionStateDenied,
     } m_permissionState;
     typedef WTF::HashSet<RefPtr<WebCore::Geolocation> > GeolocationSet;
     GeolocationSet m_pendingPermission;
 };
 
 }
 
 #endif