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

Source/modules/indexeddb/InspectorIndexedDBAgent.cpp

 /*
  * Copyright (C) 2012 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 102 matching lines @@
         IDBRequest* idbRequest = static_cast<IDBRequest*>(event->target());
         IDBAny* requestResult = idbRequest->resultAsAny();
         if (requestResult->type() != IDBAny::DOMStringListType) {
             m_requestCallback->sendFailure("Unexpected result type.");
             return;
         }
 
         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));
+            databaseNames->addItem(databaseNamesList->anonymousIndexedGetter(i));
         m_requestCallback->sendSuccess(databaseNames.release());
     }
 
 private:
     GetDatabaseNamesCallback(PassRefPtrWillBeRawPtr<RequestDatabaseNamesCallback> requestCallback, const String& securityOrigin)
         : EventListener(EventListener::CPPEventListenerType)
         , m_requestCallback(requestCallback)
         , m_securityOrigin(securityOrigin) { }
     RefPtrWillBePersistent<RequestDatabaseNamesCallback> m_requestCallback;
     String m_securityOrigin;
@@ skipping 649 matching lines @@
     clearObjectStore->start(idbFactory, document->securityOrigin(), databaseName);
 }
 
 DEFINE_TRACE(InspectorIndexedDBAgent)
 {
     visitor->trace(m_page);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink