Web SQL: Remove unnecessary abstraction.

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 14 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #include "config.h"
 #include "modules/webdatabase/SQLStatement.h"
 
 #include "platform/Logging.h"
 #include "modules/webdatabase/sqlite/SQLiteDatabase.h"
 #include "modules/webdatabase/sqlite/SQLiteStatement.h"
 #include "modules/webdatabase/AbstractDatabaseServer.h"
-#include "modules/webdatabase/AbstractSQLStatementBackend.h"
 #include "modules/webdatabase/Database.h"
 #include "modules/webdatabase/DatabaseManager.h"
+#include "modules/webdatabase/SQLError.h"
+#include "modules/webdatabase/SQLStatementBackend.h"
 #include "modules/webdatabase/SQLStatementCallback.h"
 #include "modules/webdatabase/SQLStatementErrorCallback.h"
 #include "modules/webdatabase/SQLTransaction.h"
 #include "wtf/text/CString.h"
 
 namespace blink {
 
 PassOwnPtrWillBeRawPtr<SQLStatement> SQLStatement::create(Database* database,
     PassOwnPtrWillBeRawPtr<SQLStatementCallback> callback, PassOwnPtrWillBeRawPtr<SQLStatementErrorCallback> errorCallback)
 {
     return adoptPtrWillBeNoop(new SQLStatement(database, callback, errorCallback));
 }
 
 SQLStatement::SQLStatement(Database* database, PassOwnPtrWillBeRawPtr<SQLStatementCallback> callback,
     PassOwnPtrWillBeRawPtr<SQLStatementErrorCallback> errorCallback)
     : m_statementCallbackWrapper(callback, database->executionContext())
     , m_statementErrorCallbackWrapper(errorCallback, database->executionContext())
 {
 }
 
+SQLStatement::~SQLStatement()
+{
+}
+
 void SQLStatement::trace(Visitor* visitor)
 {
     visitor->trace(m_backend);
     visitor->trace(m_statementCallbackWrapper);
     visitor->trace(m_statementErrorCallbackWrapper);
-    AbstractSQLStatement::trace(visitor);
 }
 
-void SQLStatement::setBackend(AbstractSQLStatementBackend* backend)
+void SQLStatement::setBackend(SQLStatementBackend* backend)
 {
     m_backend = backend;
 }
 
 bool SQLStatement::hasCallback()
 {
     return m_statementCallbackWrapper.hasCallback();
 }
 
 bool SQLStatement::hasErrorCallback()
@@ skipping 21 matching lines @@
         }
     } else if (callback) {
         RefPtrWillBeRawPtr<SQLResultSet> resultSet = m_backend->sqlResultSet();
         callbackError = !callback->handleEvent(transaction, resultSet.get());
     }
 
     return callbackError;
 }
 
 } // namespace blink