include RefCounted.h where needed, only.

third_party/WebKit/Source/core/html/track/vtt/VTTRegion.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 19 matching lines @@
 
 #ifndef VTTRegion_h
 #define VTTRegion_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/html/track/TextTrack.h"
 #include "platform/Timer.h"
 #include "platform/geometry/FloatPoint.h"
 #include "platform/heap/Handle.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/RefCounted.h"
 
 namespace blink {
 
 class Document;
 class ExceptionState;
 class HTMLDivElement;
 class VTTCueBox;
 class VTTScanner;
 
 class VTTRegion final : public GarbageCollectedFinalized<VTTRegion>, public ScriptWrappable {
@@ skipping 97 matching lines @@
     // been displayed. It's main use is for scrolling regions and it triggers as
     // soon as the animation for rolling out one line has finished, but
     // currently it is used also for non-scrolling regions to use a single
     // code path.
     Timer<VTTRegion> m_scrollTimer;
 };
 
 } // namespace blink
 
 #endif // VTTRegion_h