Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webdatabase/DatabaseTracker.cpp

 /*
  * Copyright (C) 2011 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 87 matching lines @@
     String name(database->stringIdentifier());
     DatabaseSet* databaseSet = nameMap->get(name);
     if (!databaseSet) {
         databaseSet = new DatabaseSet();
         nameMap->set(name, databaseSet);
     }
 
     databaseSet->add(database);
 }
 
-class NotifyDatabaseObserverOnCloseTask : public ExecutionContextTask {
+class NotifyDatabaseObserverOnCloseTask FINAL : public ExecutionContextTask {
 public:
     static PassOwnPtr<NotifyDatabaseObserverOnCloseTask> create(PassRefPtr<DatabaseBackendBase> database)
     {
         return adoptPtr(new NotifyDatabaseObserverOnCloseTask(database));
     }
 
-    virtual void performTask(ExecutionContext* context)
+    virtual void performTask(ExecutionContext*) OVERRIDE
     {
         databaseClosed(m_database.get());
     }
 
-    virtual bool isCleanupTask() const
+    virtual bool isCleanupTask() const OVERRIDE
     {
         return true;
     }
 
 private:
     NotifyDatabaseObserverOnCloseTask(PassRefPtr<DatabaseBackendBase> database)
         : m_database(database)
     {
     }
 
@@ skipping 81 matching lines @@
     for (DatabaseNameMap::const_iterator dbNameMapIt = nameMap->begin(); dbNameMapIt != dbNameMapEndIt; ++dbNameMapIt) {
         DatabaseSet* databaseSet = dbNameMapIt->value;
         DatabaseSet::const_iterator end = databaseSet->end();
         for (DatabaseSet::const_iterator it = databaseSet->begin(); it != end; ++it) {
             if ((*it)->databaseContext() == context)
                 (*it)->interrupt();
         }
     }
 }
 
-class DatabaseTracker::CloseOneDatabaseImmediatelyTask : public ExecutionContextTask {
+class DatabaseTracker::CloseOneDatabaseImmediatelyTask FINAL : public ExecutionContextTask {
 public:
     static PassOwnPtr<CloseOneDatabaseImmediatelyTask> create(const String& originIdentifier, const String& name, DatabaseBackendBase* database)
     {
         return adoptPtr(new CloseOneDatabaseImmediatelyTask(originIdentifier, name, database));
     }
 
-    virtual void performTask(ExecutionContext* context)
+    virtual void performTask(ExecutionContext*) OVERRIDE
     {
         DatabaseTracker::tracker().closeOneDatabaseImmediately(m_originIdentifier, m_name, m_database);
     }
 
 private:
     CloseOneDatabaseImmediatelyTask(const String& originIdentifier, const String& name, DatabaseBackendBase* database)
         : m_originIdentifier(originIdentifier.isolatedCopy())
         , m_name(name.isolatedCopy())
         , m_database(database)
     {
@@ skipping 44 matching lines @@
         DatabaseSet::iterator found = databaseSet->find(database);
         if (found == databaseSet->end())
             return;
     }
 
     // And we have to call closeImmediately() without our collection lock being held.
     database->closeImmediately();
 }
 
 }