include RefCounted.h where needed, only.

third_party/WebKit/Source/core/layout/line/AbstractInlineTextBox.h

 /*
  * Copyright (C) 2013 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 18 matching lines @@
  */
 
 #ifndef AbstractInlineTextBox_h
 #define AbstractInlineTextBox_h
 
 #include "core/CoreExport.h"
 #include "core/dom/Range.h"
 #include "core/layout/api/LineLayoutText.h"
 #include "core/layout/line/InlineTextBox.h"
 #include "wtf/HashMap.h"
+#include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class InlineTextBox;
 
 // High-level abstraction of InlineTextBox to allow the accessibility module to
 // get information about InlineTextBoxes without tight coupling.
 class CORE_EXPORT AbstractInlineTextBox : public RefCounted<AbstractInlineTextBox> {
 private:
@@ skipping 47 matching lines @@
     LineLayoutText m_lineLayoutItem;
     InlineTextBox* m_inlineTextBox;
 
     typedef HashMap<InlineTextBox*, RefPtr<AbstractInlineTextBox>> InlineToAbstractInlineTextBoxHashMap;
     static InlineToAbstractInlineTextBoxHashMap* gAbstractInlineTextBoxMap;
 };
 
 } // namespace blink
 
 #endif // AbstractInlineTextBox_h