Revert of Remove unnecessary uses of GarbageCollectedFinalized<>.

third_party/WebKit/Source/modules/webdatabase/SQLStatement.cpp

 /*
  * Copyright (C) 2007, 2013 Apple 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 40 matching lines @@
 
 SQLStatement::SQLStatement(Database* database, SQLStatementCallback* callback,
     SQLStatementErrorCallback* errorCallback)
     : m_statementCallback(callback)
     , m_statementErrorCallback(errorCallback)
 {
     if (hasCallback() || hasErrorCallback())
         InspectorInstrumentation::asyncTaskScheduled(database->getExecutionContext(), "SQLStatement", this);
 }
 
+SQLStatement::~SQLStatement()
+{
+}
+
 DEFINE_TRACE(SQLStatement)
 {
     visitor->trace(m_backend);
     visitor->trace(m_statementCallback);
     visitor->trace(m_statementErrorCallback);
 }
 
 void SQLStatement::setBackend(SQLStatementBackend* backend)
 {
     m_backend = backend;
@@ skipping 28 matching lines @@
         if (errorCallback)
             callbackError = errorCallback->handleEvent(transaction, SQLError::create(*error));
     } else if (callback) {
         callbackError = !callback->handleEvent(transaction, m_backend->sqlResultSet());
     }
 
     return callbackError;
 }
 
 } // namespace blink