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

Source/modules/webdatabase/SQLTransactionBackendSync.cpp

Index: Source/modules/webdatabase/SQLTransactionBackendSync.cpp
diff --git a/Source/modules/webdatabase/SQLTransactionBackendSync.cpp b/Source/modules/webdatabase/SQLTransactionBackendSync.cpp
index ffe0f4038e160e543a8d35bee1b27a667405b100..4b1fd6d6b60c3cfa56aa66f587fe315cd6aea5b8 100644
--- a/Source/modules/webdatabase/SQLTransactionBackendSync.cpp
+++ b/Source/modules/webdatabase/SQLTransactionBackendSync.cpp
@@ -83,7 +83,7 @@ void SQLTransactionBackendSync::trace(Visitor* visitor)
     visitor->trace(m_database);
 }
 
-PassRefPtr<SQLResultSet> SQLTransactionBackendSync::executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments, ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<SQLResultSet> SQLTransactionBackendSync::executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments, ExceptionState& exceptionState)
 {
     ASSERT(m_database->executionContext()->isContextThread());
 
@@ -114,7 +114,7 @@ PassRefPtr<SQLResultSet> SQLTransactionBackendSync::executeSQL(const String& sql
 
     m_database->resetAuthorizer();
     bool retryStatement = true;
-    RefPtr<SQLResultSet> resultSet;
+    RefPtrWillBeRawPtr<SQLResultSet> resultSet;
     while (retryStatement) {
         retryStatement = false;
         resultSet = statement.execute(m_database.get(), exceptionState);