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

Source/web/WebDataSourceImpl.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 38 matching lines @@
 class WebDataSourceImpl final : public DocumentLoader, public WebDataSource {
 public:
     static PassRefPtrWillBeRawPtr<WebDataSourceImpl> create(LocalFrame*, const ResourceRequest&, const SubstituteData&);
 
     static WebDataSourceImpl* fromDocumentLoader(DocumentLoader* loader)
     {
         return static_cast<WebDataSourceImpl*>(loader);
     }
 
     // WebDataSource methods:
-    virtual const WebURLRequest& originalRequest() const override;
-    virtual const WebURLRequest& request() const override;
-    virtual const WebURLResponse& response() const override;
-    virtual bool hasUnreachableURL() const override;
-    virtual WebURL unreachableURL() const override;
-    virtual void appendRedirect(const WebURL&) override;
-    virtual void redirectChain(WebVector<WebURL>&) const override;
-    virtual bool isClientRedirect() const override;
-    virtual bool replacesCurrentHistoryItem() const override;
-    virtual WebNavigationType navigationType() const override;
-    virtual ExtraData* extraData() const override;
-    virtual void setExtraData(ExtraData*) override;
-    virtual void setNavigationStartTime(double) override;
+    const WebURLRequest& originalRequest() const override;
+    const WebURLRequest& request() const override;
+    const WebURLResponse& response() const override;
+    bool hasUnreachableURL() const override;
+    WebURL unreachableURL() const override;
+    void appendRedirect(const WebURL&) override;
+    void redirectChain(WebVector<WebURL>&) const override;
+    bool isClientRedirect() const override;
+    bool replacesCurrentHistoryItem() const override;
+    WebNavigationType navigationType() const override;
+    ExtraData* extraData() const override;
+    void setExtraData(ExtraData*) override;
+    void setNavigationStartTime(double) override;
 
     static WebNavigationType toWebNavigationType(NavigationType);
 
     PassOwnPtr<WebPluginLoadObserver> releasePluginLoadObserver() { return m_pluginLoadObserver.release(); }
     static void setNextPluginLoadObserver(PassOwnPtr<WebPluginLoadObserver>);
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     WebDataSourceImpl(LocalFrame*, const ResourceRequest&, const SubstituteData&);
-    virtual ~WebDataSourceImpl();
-    virtual void detachFromFrame() override;
+    ~WebDataSourceImpl() override;
+    void detachFromFrame() override;
 
     // Mutable because the const getters will magically sync these to the
     // latest version from WebKit.
     mutable WrappedResourceRequest m_originalRequestWrapper;
     mutable WrappedResourceRequest m_requestWrapper;
     mutable WrappedResourceResponse m_responseWrapper;
 
     OwnPtr<ExtraData> m_extraData;
     OwnPtr<WebPluginLoadObserver> m_pluginLoadObserver;
 };
 
 } // namespace blink
 
 #endif  // WebDataSourceImpl_h