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

Source/modules/webdatabase/ChangeVersionWrapper.h

Index: Source/modules/webdatabase/ChangeVersionWrapper.h
diff --git a/Source/modules/webdatabase/ChangeVersionWrapper.h b/Source/modules/webdatabase/ChangeVersionWrapper.h
index fd3ff28633d47f7d5fa396cb26888ca7d035933f..dbf4c2074baf798da7e354271d92970953369500 100644
--- a/Source/modules/webdatabase/ChangeVersionWrapper.h
+++ b/Source/modules/webdatabase/ChangeVersionWrapper.h
@@ -40,10 +40,10 @@ class ChangeVersionWrapper final : public SQLTransactionWrapper {
 public:
     static ChangeVersionWrapper* create(const String& oldVersion, const String& newVersion) { return new ChangeVersionWrapper(oldVersion, newVersion); }
 
-    virtual bool performPreflight(SQLTransactionBackend*) override;
-    virtual bool performPostflight(SQLTransactionBackend*) override;
-    virtual SQLErrorData* sqlError() const override { return m_sqlError.get(); }
-    virtual void handleCommitFailedAfterPostflight(SQLTransactionBackend*) override;
+    bool performPreflight(SQLTransactionBackend*) override;
+    bool performPostflight(SQLTransactionBackend*) override;
+    SQLErrorData* sqlError() const override { return m_sqlError.get(); }
+    void handleCommitFailedAfterPostflight(SQLTransactionBackend*) override;
 
 private:
     ChangeVersionWrapper(const String& oldVersion, const String& newVersion);