blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/testing/Internals.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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.
@@ skipping 39 matching lines @@
 class DOMPoint;
 class DictionaryTest;
 class Document;
 class DocumentMarker;
 class Element;
 class ExceptionState;
 class GCObservation;
 class HTMLMediaElement;
 class InternalRuntimeFlags;
 class InternalSettings;
-class Iterator;
 class LayerRectList;
 class LocalDOMWindow;
 class LocalFrame;
 class Node;
 class OriginTrialsTest;
 class Page;
 class PrivateScriptTest;
 class Range;
 class SerializedScriptValue;
 class ShadowRoot;
@@ skipping 467 matching lines @@
                            unsigned index,
                            ExceptionState&);
   Member<InternalRuntimeFlags> m_runtimeFlags;
 
   IterationSource* startIteration(ScriptState*, ExceptionState&) override;
 };
 
 }  // namespace blink
 
 #endif  // Internals_h