Fix virtual/override/final usage in the rest of Source/core/.

Source/core/inspector/InspectorWorkerAgent.cpp

Index: Source/core/inspector/InspectorWorkerAgent.cpp
diff --git a/Source/core/inspector/InspectorWorkerAgent.cpp b/Source/core/inspector/InspectorWorkerAgent.cpp
index 266d0f2ac30af2b5412f985e26323c83cd82cd84..b70864e2ccce00494c71feea4a2de4872614c7d7 100644
--- a/Source/core/inspector/InspectorWorkerAgent.cpp
+++ b/Source/core/inspector/InspectorWorkerAgent.cpp
@@ -62,7 +62,7 @@ public:
     {
         ASSERT(!proxy->pageInspector());
     }
-    virtual ~WorkerAgentClient()
+    ~WorkerAgentClient() override
     {
         disconnectFromWorker();
     }
@@ -88,12 +88,12 @@ public:
 
 private:
     // WorkerInspectorProxy::PageInspector implementation
-    virtual void dispatchMessageFromWorker(const String& message) override
+    void dispatchMessageFromWorker(const String& message) override
     {
         m_frontend->dispatchMessageFromWorker(m_id, message);
     }
     // WorkerInspectorProxy::PageInspector implementation
-    virtual void workerConsoleAgentEnabled(WorkerGlobalScopeProxy* proxy) override
+    void workerConsoleAgentEnabled(WorkerGlobalScopeProxy* proxy) override
     {
         m_consoleAgent->workerConsoleAgentEnabled(proxy);
     }