Remove duplicated headers from modules/

Source/modules/indexeddb/IDBIndex.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 12 matching lines @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "modules/indexeddb/IDBIndex.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "modules/indexeddb/IDBKey.h"
-#include "modules/indexeddb/IDBKeyRange.h"
-#include "modules/indexeddb/IDBObjectStore.h"
-#include "modules/indexeddb/IDBRequest.h"
 #include "modules/indexeddb/IDBTracing.h"
 #include "modules/indexeddb/IDBTransaction.h"
 
 namespace WebCore {
 
 IDBIndex::IDBIndex(const IDBIndexMetadata& metadata, IDBObjectStore* objectStore, IDBTransaction* transaction)
     : m_metadata(metadata)
     , m_objectStore(objectStore)
     , m_transaction(transaction)
     , m_deleted(false)
@@ skipping 158 matching lines @@
 {
     return m_transaction->backendDB();
 }
 
 bool IDBIndex::isDeleted() const
 {
     return m_deleted || m_objectStore->isDeleted();
 }
 
 } // namespace WebCore