blink: Cleanup class/struct forward declarations

third_party/WebKit/public/web/WebAXObject.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 21 matching lines @@
 #define WebAXObject_h
 
 #include "../platform/WebCommon.h"
 #include "../platform/WebPoint.h"
 #include "../platform/WebPrivatePtr.h"
 #include "../platform/WebSize.h"
 #include "../platform/WebVector.h"
 #include "WebAXEnums.h"
 #include <memory>
 
-#if BLINK_IMPLEMENTATION
-namespace WTF {
-template <typename T>
-class PassRefPtr;
-}
-#endif
-
 class SkMatrix44;
 
 namespace blink {
 
 class AXObject;
 class ScopedAXObjectCache;
 class WebAXObject;
 class WebNode;
 class WebDocument;
 class WebString;
@@ skipping 285 matching lines @@
   operator AXObject*() const;
 #endif
 
  private:
   WebPrivatePtr<AXObject> m_private;
 };
 
 }  // namespace blink
 
 #endif