Drop [LegacyImplementedInBaseClass] attribute from WindowTimers

Source/core/page/DOMWindowTimers.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Samsung Electronics. 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
@@ skipping 12 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 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.
  */
 
-#ifndef DOMWindowBase64_h
-#define DOMWindowBase64_h
+#ifndef DOMWindowTimers_h
+#define DOMWindowTimers_h
 
-#include "core/dom/ExceptionCode.h"
-#include "wtf/text/WTFString.h"
+#include "wtf/Forward.h"
 
 namespace WebCore {
 
-namespace DOMWindowBase64 {
-String btoa(void*, const String& stringToEncode, ExceptionCode&);
-String atob(void*, const String& encodedString, ExceptionCode&);
+class EventTarget;
+class ScheduledAction;
+
+namespace DOMWindowTimers {
+int setTimeout(EventTarget*, PassOwnPtr<ScheduledAction>, int timeout);
+int setInterval(EventTarget*, PassOwnPtr<ScheduledAction>, int timeout);
+void clearTimeout(EventTarget*, int timeoutId);
+void clearInterval(EventTarget*, int timeoutId);
 }
 
 } // namespace WebCore
 
-#endif // DOMWindowBase64_h
+#endif // DOMWindowTimers_h