Mark DOMStringList.contains() as deprecated, add console warning.

Source/modules/indexeddb/IDBRequest.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 232 matching lines @@
     m_pendingCursor.clear();
     enqueueEvent(Event::createCancelableBubble(EventTypeNames::error));
 }
 
 void IDBRequest::onSuccess(const Vector<String>& stringList)
 {
     IDB_TRACE("IDBRequest::onSuccess(StringList)");
     if (!shouldEnqueueEvent())
         return;
 
-    RefPtrWillBeRawPtr<DOMStringList> domStringList = DOMStringList::create();
+    RefPtrWillBeRawPtr<DOMStringList> domStringList = DOMStringList::create(DOMStringList::IndexedDB);
     for (size_t i = 0; i < stringList.size(); ++i)
         domStringList->append(stringList[i]);
     onSuccessInternal(IDBAny::create(domStringList.release()));
 }
 
 void IDBRequest::onSuccess(PassOwnPtr<WebIDBCursor> backend, IDBKey* key, IDBKey* primaryKey, PassRefPtr<IDBValue> value)
 {
     IDB_TRACE("IDBRequest::onSuccess(IDBCursor)");
     if (!shouldEnqueueEvent())
         return;
@@ skipping 277 matching lines @@
 
 void IDBRequest::dequeueEvent(Event* event)
 {
     for (size_t i = 0; i < m_enqueuedEvents.size(); ++i) {
         if (m_enqueuedEvents[i].get() == event)
             m_enqueuedEvents.remove(i);
     }
 }
 
 } // namespace blink