Split Dictionary's get and convert into DictionaryHelper.

Source/modules/indexeddb/IDBObjectStore.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 368 matching lines @@
     Persistent<IDBDatabase> m_database;
     const int64_t m_transactionId;
     const int64_t m_objectStoreId;
     const IDBIndexMetadata m_indexMetadata;
 };
 }
 
 IDBIndex* IDBObjectStore::createIndex(ScriptState* scriptState, const String& name, const IDBKeyPath& keyPath, const Dictionary& options, ExceptionState& exceptionState)
 {
     bool unique = false;
-    options.get("unique", unique);
+    DictionaryHelper::get(options, "unique", unique);
 
     bool multiEntry = false;
-    options.get("multiEntry", multiEntry);
+    DictionaryHelper::get(options, "multiEntry", multiEntry);
 
     return createIndex(scriptState, name, keyPath, unique, multiEntry, exceptionState);
 }
 
 IDBIndex* IDBObjectStore::createIndex(ScriptState* scriptState, const String& name, const IDBKeyPath& keyPath, bool unique, bool multiEntry, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBObjectStore::createIndex");
     if (!m_transaction->isVersionChange()) {
         exceptionState.throwDOMException(InvalidStateError, IDBDatabase::notVersionChangeTransactionErrorMessage);
         return 0;
@@ skipping 258 matching lines @@
     }
     return IDBIndexMetadata::InvalidId;
 }
 
 WebIDBDatabase* IDBObjectStore::backendDB() const
 {
     return m_transaction->backendDB();
 }
 
 } // namespace WebCore