Oilpan: move DOM string collection objects to the Oilpan heap.

Source/modules/indexeddb/IDBDatabase.cpp

Index: Source/modules/indexeddb/IDBDatabase.cpp
diff --git a/Source/modules/indexeddb/IDBDatabase.cpp b/Source/modules/indexeddb/IDBDatabase.cpp
index 86fd59ffa7f581d273a78e87514d43ccb362c236..111e86f15f9ac45f06596653b56a2a9716511c09 100644
--- a/Source/modules/indexeddb/IDBDatabase.cpp
+++ b/Source/modules/indexeddb/IDBDatabase.cpp
@@ -167,9 +167,9 @@ void IDBDatabase::onComplete(int64_t transactionId)
     m_transactions.get(transactionId)->onComplete();
 }
 
-PassRefPtr<DOMStringList> IDBDatabase::objectStoreNames() const
+PassRefPtrWillBeRawPtr<DOMStringList> IDBDatabase::objectStoreNames() const
 {
-    RefPtr<DOMStringList> objectStoreNames = DOMStringList::create();
+    RefPtrWillBeMember<DOMStringList> objectStoreNames = DOMStringList::create();
     for (IDBDatabaseMetadata::ObjectStoreMap::const_iterator it = m_metadata.objectStores.begin(); it != m_metadata.objectStores.end(); ++it)
         objectStoreNames->append(it->value.name);
     objectStoreNames->sort();
@@ -332,7 +332,7 @@ PassRefPtr<IDBTransaction> IDBDatabase::transaction(ExecutionContext* context, c
 
 PassRefPtr<IDBTransaction> IDBDatabase::transaction(ExecutionContext* context, const String& storeName, const String& mode, ExceptionState& exceptionState)
 {
-    RefPtr<DOMStringList> storeNames = DOMStringList::create();
+    RefPtrWillBeMember<DOMStringList> storeNames = DOMStringList::create();
     storeNames->append(storeName);
     return transaction(context, storeNames, mode, exceptionState);
 }