Remove duplicated headers from modules/

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 10 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "modules/indexeddb/IDBDatabase.h"
 
 #include "bindings/v8/ExceptionState.h"
 #include "bindings/v8/ExceptionStatePlaceholder.h"
-#include "core/dom/DOMStringList.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/events/EventQueue.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "modules/indexeddb/IDBAny.h"
-#include "modules/indexeddb/IDBDatabaseCallbacks.h"
 #include "modules/indexeddb/IDBEventDispatcher.h"
 #include "modules/indexeddb/IDBHistograms.h"
 #include "modules/indexeddb/IDBIndex.h"
 #include "modules/indexeddb/IDBKeyPath.h"
-#include "modules/indexeddb/IDBObjectStore.h"
 #include "modules/indexeddb/IDBTracing.h"
-#include "modules/indexeddb/IDBTransaction.h"
 #include "modules/indexeddb/IDBVersionChangeEvent.h"
 #include "public/platform/Platform.h"
 #include "wtf/Atomics.h"
 #include <limits>
 
 namespace WebCore {
 
 const char IDBDatabase::indexDeletedErrorMessage[] = "The index or its object store has been deleted.";
 const char IDBDatabase::isKeyCursorErrorMessage[] = "The cursor is a key cursor.";
 const char IDBDatabase::noKeyOrKeyRangeErrorMessage[] = "No key or key range specified.";
@@ skipping 354 matching lines @@
 {
     return EventTargetNames::IDBDatabase;
 }
 
 ExecutionContext* IDBDatabase::executionContext() const
 {
     return ActiveDOMObject::executionContext();
 }
 
 } // namespace WebCore