Drop empty [] for dictionaries and interfaces in IDL files

third_party/WebKit/Source/core/frame/History.idl

 /*
  * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
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  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 // https://html.spec.whatwg.org/#the-history-interface
 
 enum ScrollRestoration {"auto", "manual"};
 
-[
-] interface History {
+interface History {
     readonly attribute unsigned long length;
     [Measure] attribute ScrollRestoration scrollRestoration;
     // TODO(foolip): The SerializedScriptValue type should be any.
     [CachedAttribute=stateChanged] readonly attribute SerializedScriptValue state;
     [CallWith=ExecutionContext] void go(optional long delta = 0);
     [CallWith=ExecutionContext] void back();
     [CallWith=ExecutionContext] void forward();
     // TODO(foolip): The SerializedScriptValue types should be any.
     // TODO(foolip): The title arguments should simply be 'DOMString title'.
     [RaisesException] void pushState(SerializedScriptValue data, [TreatUndefinedAs=NullString] DOMString? title, optional DOMString? url = null);
     [RaisesException] void replaceState(SerializedScriptValue data, [TreatUndefinedAs=NullString] DOMString? title, optional DOMString? url = null);
 };