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

Source/web/WebDOMActivityLogger.cpp

Index: Source/web/WebDOMActivityLogger.cpp
diff --git a/Source/web/WebDOMActivityLogger.cpp b/Source/web/WebDOMActivityLogger.cpp
index 295067959fd4da01d1ba6f8c4393b235f96b8094..0d008374242ba67e5ec775cbe3860400804c9714 100644
--- a/Source/web/WebDOMActivityLogger.cpp
+++ b/Source/web/WebDOMActivityLogger.cpp
@@ -47,22 +47,22 @@ public:
     {
     }
 
-    virtual void logGetter(const String& apiName) override
+    void logGetter(const String& apiName) override
     {
         m_domActivityLogger->logGetter(WebString(apiName), getURL(), getTitle());
     }
 
-    virtual void logSetter(const String& apiName, const v8::Local<v8::Value>& newValue) override
+    void logSetter(const String& apiName, const v8::Local<v8::Value>& newValue) override
     {
         m_domActivityLogger->logSetter(WebString(apiName), newValue, getURL(), getTitle());
     }
 
-    virtual void logMethod(const String& apiName, int argc, const v8::Local<v8::Value>* argv) override
+    void logMethod(const String& apiName, int argc, const v8::Local<v8::Value>* argv) override
     {
         m_domActivityLogger->logMethod(WebString(apiName), argc, argv, getURL(), getTitle());
     }
 
-    virtual void logEvent(const String& eventName, int argc, const String* argv) override
+    void logEvent(const String& eventName, int argc, const String* argv) override
     {
         Vector<WebString> webStringArgv;
         for (int i = 0; i < argc; i++)