Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/frame

Source/core/frame/csp/MediaListDirective.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 MediaListDirective_h
 #define MediaListDirective_h
 
 #include "core/frame/csp/CSPDirective.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "wtf/HashSet.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class ContentSecurityPolicy;
 
-class MediaListDirective FINAL : public CSPDirective {
+class MediaListDirective final : public CSPDirective {
     WTF_MAKE_NONCOPYABLE(MediaListDirective);
 public:
     MediaListDirective(const String& name, const String& value, ContentSecurityPolicy*);
     bool allows(const String& type);
 
 private:
     void parse(const UChar* begin, const UChar* end);
 
     HashSet<String> m_pluginTypes;
 };
 
 } // namespace blink
 
 #endif