Split Dictionary's get and convert into DictionaryHelper.

Source/modules/indexeddb/IDBDatabase.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 185 matching lines @@
     return idbAnyToScriptValue(scriptState, IDBAny::create(intVersion));
 }
 
 IDBObjectStore* IDBDatabase::createObjectStore(const String& name, const Dictionary& options, ExceptionState& exceptionState)
 {
     IDBKeyPath keyPath;
     bool autoIncrement = false;
     if (!options.isUndefinedOrNull()) {
         String keyPathString;
         Vector<String> keyPathArray;
-        if (options.get("keyPath", keyPathArray))
+        if (DictionaryHelper::get(options, "keyPath", keyPathArray))
             keyPath = IDBKeyPath(keyPathArray);
         else if (options.getWithUndefinedOrNullCheck("keyPath", keyPathString))
             keyPath = IDBKeyPath(keyPathString);
 
-        options.get("autoIncrement", autoIncrement);
+        DictionaryHelper::get(options, "autoIncrement", autoIncrement);
     }
 
     return createObjectStore(name, keyPath, autoIncrement, exceptionState);
 }
 
 IDBObjectStore* IDBDatabase::createObjectStore(const String& name, const IDBKeyPath& keyPath, bool autoIncrement, ExceptionState& exceptionState)
 {
     IDB_TRACE("IDBDatabase::createObjectStore");
     blink::Platform::current()->histogramEnumeration("WebCore.IndexedDB.FrontEndAPICalls", IDBCreateObjectStoreCall, IDBMethodsMax);
     if (!m_versionChangeTransaction) {
@@ skipping 249 matching lines @@
 {
     return EventTargetNames::IDBDatabase;
 }
 
 ExecutionContext* IDBDatabase::executionContext() const
 {
     return ActiveDOMObject::executionContext();
 }
 
 } // namespace WebCore