Oilpan: Prepare to move SQLResultSet and SQLResultSetRowList to oilpan heap.

Source/modules/webdatabase/SQLStatementSync.cpp

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  * 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.
@@ skipping 32 matching lines @@
 namespace WebCore {
 
 SQLStatementSync::SQLStatementSync(const String& statement, const Vector<SQLValue>& arguments, int permissions)
     : m_statement(statement)
     , m_arguments(arguments)
     , m_permissions(permissions)
 {
     ASSERT(!m_statement.isEmpty());
 }
 
-PassRefPtr<SQLResultSet> SQLStatementSync::execute(DatabaseSync* db, ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<SQLResultSet> SQLStatementSync::execute(DatabaseSync* db, ExceptionState& exceptionState)
 {
     db->setAuthorizerPermissions(m_permissions);
 
     SQLiteDatabase* database = &db->sqliteDatabase();
 
     SQLiteStatement statement(*database, m_statement);
     int result = statement.prepare();
     if (result != SQLResultOk) {
         if (result == SQLResultInterrupt)
             exceptionState.throwDOMException(SQLDatabaseError, "Connection to the database interrupted.");
@@ skipping 20 matching lines @@
             return nullptr;
         }
 
         if (result != SQLResultOk) {
             exceptionState.throwDOMException(SQLDatabaseError, "Could not bind value.");
             db->setLastErrorMessage("could not bind value", result, database->lastErrorMsg());
             return nullptr;
         }
     }
 
-    RefPtr<SQLResultSet> resultSet = SQLResultSet::create();
+    RefPtrWillBeRawPtr<SQLResultSet> resultSet = SQLResultSet::create();
 
     // Step so we can fetch the column names.
     result = statement.step();
     if (result == SQLResultRow) {
         int columnCount = statement.columnCount();
         SQLResultSetRowList* rows = resultSet->rows();
 
         for (int i = 0; i < columnCount; i++)
             rows->addColumn(statement.getColumnName(i));
 
@@ skipping 22 matching lines @@
         exceptionState.throwDOMException(ConstraintError, "A constraint was violated.");
         db->setLastErrorMessage("statement failed due to a constraint failure");
         return nullptr;
     } else {
         exceptionState.throwDOMException(SQLDatabaseError, "Could not execute statement.");
         db->setLastErrorMessage("could not execute statement", result, database->lastErrorMsg());
         return nullptr;
     }
 
     resultSet->setRowsAffected(database->lastChanges());
+    resultSet->setValid();
     return resultSet.release();
 }
 
 } // namespace WebCore