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

Source/modules/webdatabase/SQLStatementSync.h

Index: Source/modules/webdatabase/SQLStatementSync.h
diff --git a/Source/modules/webdatabase/SQLStatementSync.h b/Source/modules/webdatabase/SQLStatementSync.h
index d8922125e0064ede65a536e714279a415e5b3c69..8f23593d08e2b327e27a575ca50033be3498b287 100644
--- a/Source/modules/webdatabase/SQLStatementSync.h
+++ b/Source/modules/webdatabase/SQLStatementSync.h
@@ -31,6 +31,7 @@
 #ifndef SQLStatementSync_h
 #define SQLStatementSync_h
 
+#include "heap/Handle.h"
 #include "modules/webdatabase/sqlite/SQLValue.h"
 #include "modules/webdatabase/DatabaseBasicTypes.h"
 #include "wtf/Forward.h"
@@ -47,7 +48,7 @@ class SQLStatementSync {
 public:
     SQLStatementSync(const String& statement, const Vector<SQLValue>& arguments, int permissions);
 
-    PassRefPtr<SQLResultSet> execute(DatabaseSync*, ExceptionState&);
+    PassRefPtrWillBeRawPtr<SQLResultSet> execute(DatabaseSync*, ExceptionState&);
 
 private:
     String m_statement;