Fix virtual/override/final usage in Source/core/{fetch,loader,streams,xmlhttprequest}/.

Source/core/loader/DocumentLoader.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Google 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 48 matching lines @@
     class ResourceLoader;
     class ThreadedDataReceiver;
 
     class CORE_EXPORT DocumentLoader : public RefCountedWillBeGarbageCollectedFinalized<DocumentLoader>, private RawResourceClient {
         WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(DocumentLoader);
     public:
         static PassRefPtrWillBeRawPtr<DocumentLoader> create(LocalFrame* frame, const ResourceRequest& request, const SubstituteData& data)
         {
             return adoptRefWillBeNoop(new DocumentLoader(frame, request, data));
         }
-        virtual ~DocumentLoader();
+        ~DocumentLoader() override;
 
         LocalFrame* frame() const { return m_frame; }
 
         virtual void detachFromFrame();
 
         unsigned long mainResourceIdentifier() const;
 
         void replaceDocumentWhileExecutingJavaScriptURL(const DocumentInit&, const String& source, Document*);
 
         const AtomicString& mimeType() const;
@@ skipping 86 matching lines @@
         void clearMainResourceHandle();
 
         bool maybeCreateArchive();
 
         void prepareSubframeArchiveLoadIfNeeded();
 
         void willSendRequest(ResourceRequest&, const ResourceResponse&);
         void finishedLoading(double finishTime);
         void mainReceivedError(const ResourceError&);
         void cancelLoadAfterXFrameOptionsOrCSPDenied(const ResourceResponse&);
-        virtual void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) override final;
-        virtual void updateRequest(Resource*, const ResourceRequest&) override final;
-        virtual void responseReceived(Resource*, const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>) override final;
-        virtual void dataReceived(Resource*, const char* data, unsigned length) override final;
-        virtual void notifyFinished(Resource*) override final;
+        void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) final;
+        void updateRequest(Resource*, const ResourceRequest&) final;
+        void responseReceived(Resource*, const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>) final;
+        void dataReceived(Resource*, const char* data, unsigned length) final;
+        void notifyFinished(Resource*) final;
 
         bool maybeLoadEmpty();
 
         bool isRedirectAfterPost(const ResourceRequest&, const ResourceResponse&);
 
         bool shouldContinueForResponse() const;
 
         RawPtrWillBeMember<LocalFrame> m_frame;
         PersistentWillBeMember<ResourceFetcher> m_fetcher;
 
@@ skipping 35 matching lines @@
         RefPtr<ContentSecurityPolicy> m_contentSecurityPolicy;
         ClientHintsPreferences m_clientHintsPreferences;
         InitialScrollState m_initialScrollState;
     };
 
     DECLARE_WEAK_IDENTIFIER_MAP(DocumentLoader);
 
 } // namespace blink
 
 #endif // DocumentLoader_h