Remove unnecessary includes from dom.

third_party/WebKit/Source/core/dom/PendingScript.h

 /*
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  */
 
 #ifndef PendingScript_h
 #define PendingScript_h
 
 #include "bindings/core/v8/ScriptStreamer.h"
 #include "core/CoreExport.h"
 #include "core/fetch/ResourceOwner.h"
 #include "core/fetch/ScriptResource.h"
 #include "platform/heap/Handle.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefPtr.h"
 #include "wtf/text/TextPosition.h"
 
 namespace blink {
 
 class Element;
 class ScriptSourceCode;
 
 // A container for an external script which may be loaded and executed.
 //
+// TODO(kochi): The comment below is from pre-oilpan age and may not be correct now.
 // A RefPtr alone does not prevent the underlying Resource
 // from purging its data buffer. This class holds a dummy client open for its
 // lifetime in order to guarantee that the data buffer will not be purged.
 class CORE_EXPORT PendingScript final : public GarbageCollectedFinalized<PendingScript>, public ResourceOwner<ScriptResource> {
     USING_GARBAGE_COLLECTED_MIXIN(PendingScript);
     USING_PRE_FINALIZER(PendingScript, dispose);
 public:
     static RawPtr<PendingScript> create(Element*, ScriptResource*);
     ~PendingScript() override;
 
@@ skipping 41 matching lines @@
     bool m_integrityFailure;
     double m_parserBlockingLoadStartTime;
 
     Member<ScriptStreamer> m_streamer;
     ScriptResourceClient* m_client;
 };
 
 } // namespace blink
 
 #endif // PendingScript_h