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

Source/modules/indexeddb/IDBObjectStore.cpp

 /*
  * Copyright (C) 2010 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 406 matching lines @@
 // the objectStore. It only needs to be kept alive by virtue of being
 // a listener on an IDBRequest object, in the same way that JavaScript
 // cursor success handlers are kept alive.
 class IndexPopulator final : public EventListener {
 public:
     static PassRefPtr<IndexPopulator> create(ScriptState* scriptState, IDBDatabase* database, int64_t transactionId, int64_t objectStoreId, const IDBIndexMetadata& indexMetadata)
     {
         return adoptRef(new IndexPopulator(scriptState, database, transactionId, objectStoreId, indexMetadata));
     }
 
-    virtual bool operator==(const EventListener& other) override
+    bool operator==(const EventListener& other) override
     {
         return this == &other;
     }
 
 private:
     IndexPopulator(ScriptState* scriptState, IDBDatabase* database, int64_t transactionId, int64_t objectStoreId, const IDBIndexMetadata& indexMetadata)
         : EventListener(CPPEventListenerType)
         , m_scriptState(scriptState)
         , m_database(database)
         , m_transactionId(transactionId)
         , m_objectStoreId(objectStoreId)
         , m_indexMetadata(indexMetadata)
     {
     }
 
-    virtual void handleEvent(ExecutionContext* executionContext, Event* event) override
+    void handleEvent(ExecutionContext* executionContext, Event* event) override
     {
         ASSERT(m_scriptState->executionContext() == executionContext);
         ASSERT(event->type() == EventTypeNames::success);
         EventTarget* target = event->target();
         IDBRequest* request = static_cast<IDBRequest*>(target);
 
         if (!m_database->backend()) // If database is stopped?
             return;
 
         IDBAny* cursorAny = request->resultAsAny();
@@ skipping 290 matching lines @@
     }
     return IDBIndexMetadata::InvalidId;
 }
 
 WebIDBDatabase* IDBObjectStore::backendDB() const
 {
     return m_transaction->backendDB();
 }
 
 } // namespace blink