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

Source/modules/webdatabase/SQLStatementSync.cpp

Index: Source/modules/webdatabase/SQLStatementSync.cpp
diff --git a/Source/modules/webdatabase/SQLStatementSync.cpp b/Source/modules/webdatabase/SQLStatementSync.cpp
index 17f1b700fa519b275f9c29055f78a4fb6318b75e..3eea1d4aa4c27f041c5c0fc50dfc8c9969e021b5 100644
--- a/Source/modules/webdatabase/SQLStatementSync.cpp
+++ b/Source/modules/webdatabase/SQLStatementSync.cpp
@@ -50,7 +50,7 @@ SQLStatementSync::SQLStatementSync(const String& statement, const Vector<SQLValu
     ASSERT(!m_statement.isEmpty());
 }
 
-PassRefPtr<SQLResultSet> SQLStatementSync::execute(DatabaseSync* db, ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<SQLResultSet> SQLStatementSync::execute(DatabaseSync* db, ExceptionState& exceptionState)
 {
     db->setAuthorizerPermissions(m_permissions);
 
@@ -91,7 +91,7 @@ PassRefPtr<SQLResultSet> SQLStatementSync::execute(DatabaseSync* db, ExceptionSt
         }
     }
 
-    RefPtr<SQLResultSet> resultSet = SQLResultSet::create();
+    RefPtrWillBeRawPtr<SQLResultSet> resultSet = SQLResultSet::create();
 
     // Step so we can fetch the column names.
     result = statement.step();
@@ -134,6 +134,7 @@ PassRefPtr<SQLResultSet> SQLStatementSync::execute(DatabaseSync* db, ExceptionSt
     }
 
     resultSet->setRowsAffected(database->lastChanges());
+    resultSet->setValid();
     return resultSet.release();
 }