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

Source/modules/indexeddb/InspectorIndexedDBAgent.cpp

Index: Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
diff --git a/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp b/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
index d75e4a61be16f6ef404e82a74c8d335b9a2b37b6..c7e3bef9c0b23d6b3cd35cad29873eb79b61cecb 100644
--- a/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
+++ b/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
@@ -117,7 +117,7 @@ public:
             return;
         }
 
-        RefPtr<DOMStringList> databaseNamesList = requestResult->domStringList();
+        RefPtrWillBeRawPtr<DOMStringList> databaseNamesList = requestResult->domStringList();
         RefPtr<TypeBuilder::Array<String> > databaseNames = TypeBuilder::Array<String>::create();
         for (size_t i = 0; i < databaseNamesList->length(); ++i)
             databaseNames->addItem(databaseNamesList->item(i));